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Developers, designers, teachers, accountants, students, e-commerce, logistics, fitness, engineering, career... find your toolbox.
💻 Developer Tools · 42🎨 Designer Tools · 39📚 เครื่องมือครู · 21🧾 Accounting Tools · 57🎓 Student Tools · 11🛒 E-commerce Tools · 11🚚 Logistics Tools · 8💪 Fitness Tools · 29🏗️ Engineering Tools · 8💼 Career Tools · 54📱 Content Creator Tools · 13🍼 Parenting Tools · 5📷 Photography Tools · 9🗣️ Language Tools · 15🎵 Musician Tools · 10⚖️ Legal Tools · 5🎮 Gamer Tools · 8
Color
Color conversion, contrast and palette tools
เครื่องตรวจสอบความต่างของสีColor contrast checker: calculate contrast per WCAG 2.1 and AA/AAA pass with picker and replacement suggestions for accessible design.
Color HSL/HSV ConverterColor HSL converter: convert between HEX, RGB, HSL and HSV with live preview for frontend and design, one-click copy and offline.
เครื่องผสมสีColor mixer: blend two colors by ratio with gradient preview, supports HEX/RGB/HSL conversion and scale generation for palettes.
Color Name FinderColor name finder: enter HEX to find closest common color names like red and blue among 48 for design and palettes, with one-click copy and offline.
Color Shade AdjusterColor shade adjuster: lighten or darken a HEX color by percentage with live preview for design and UI states, one-click copy and offline.
HEX Opacity to RGBAHEX opacity converter: convert HEX color with opacity percentage to RGBA code with live preview for web and design, with one-click copy and offline.
HEX to CMYK ConverterHEX to CMYK: enter HEX to get CMYK and RGB with picker and copy for print and design. Supports batch processing and one-click copy, offline use.
เครื่องแปลงสี HEX เป็น RGB/HSLHEX to RGB converter: enter hex color value to instantly convert to RGB, HSL and RGBA codes with preview for design and frontend, with one-click copy and offline.
Accessible Color GeneratorRandom accessible color: generate random foreground background pairs meeting WCAG contrast with score, lock and bulk for design accessibility, with with one-click.
เครื่องแปลงสี RGB เป็น HEXRGB to HEX: enters RGB values to get HEX and HSL codes with preview. For design. Supports batch processing, export and one-click copy, offline use.
Web Safe Color FinderWeb safe colors tool: enter HEX to find nearest web-safe color and browse 216-color palette for legacy display support, with one-click copy and offline.
Encode & Decode
Encoding, decoding, hashing, escaping and data conversion tools
Base58 Encoder / DecoderBase58 codec tool: support Base58 encoding and decoding for Bitcoin address format for development and blockchain, with one-click copy, offline.
เข้ารหัส/ถอดรหัส Base64Online Base64 encode and decode: supports text, URL and images with full UTF-8 including Chinese. Import files, batch process and one-click copy for dev and data transfer.
เข้ารหัส/ถอดรหัส HEX และตัวดูฐานสิบหกHex converter: support text and hex conversion with offset and ASCII hex dump viewer for development and debugging, with one-click copy and offline.
ตัวถอดรหัส JWTJWT decoder: decodes JWT header and payload via Base64Url to JSON locally. For auth debugging. Supports batch processing, export and one-click copy, offline use.
เครื่องคำนวณแฮช SHASHA hash calculator: compute SHA-1, SHA-256 and SHA-512 hashes for file verification and learning, with one-click copy and offline.
เข้ารหัส/ถอดรหัส URLURL encode decode tool: support URL encoding and decoding with special characters and bulk for development, with one-click copy, offline.
ตัวแยกพารามิเตอร์ URL/ตัวสร้างURL params parser: parse query string to JSON and table handling repeats and encoding or generate back for development, with one-click copy and offline.
Vigenere Cipher ToolVigenere cipher tool: encrypt and decrypt text by key with case preserve for learning and fun, with one-click copy, offline.
แปลงข้อมูล
Unit, base, encoding and data converters
Area ConverterArea converter: convert between sqm, mu, hectare and sqft with live table for daily and engineering, with one-click copy, offline and multilingual.
Binary TranslatorBinary translator: support text and binary conversion with bulk and format for learning and dev, with one-click copy, offline.
เครื่องแปลงหน่วย BYTE / พื้นที่จัดเก็บByte converter: converts B/KB/MB/GB/TB/PB and KiB/MiB/GiB/TiB with decimal/binary distinction. For developers. Supports batch processing, export and one-click copy.
Clothing Size ConverterClothing size converter: convert CN, US, EU and JP sizes with chest/waist/hip charts for men, women, kids and shoes for cross-border shopping.
Cooking ConverterCooking converter: convert volume, weight and temperature among cups, oz, g, ml, °C/°F with ingredient densities for baking and recipes.
เครื่องแปลงอัตราแลกเปลี่ยนสกุลเงินCurrency converter: 30 currencies with cached rates for offline use (USD,EUR,CNY,JPY). For travel and trade. Supports batch processing and one-click copy.
Data Rate ConverterData rate converter: convert between Mbps, MB/s, Gbps and more speed units with download time reference for networking, one-click copy and offline.
Decibel ConverterDecibel converter: convert dB, dBm, dBV and power/voltage ratios with reference impedance and SPL for audio and RF engineering.
Energy ConverterEnergy converter: convert between joules, kJ, calories, kcal, Wh and kWh showing all units at once for nutrition and energy, with one-click copy and offline.
Frequency ConverterFrequency converter: convert between Hz, kHz, MHz, GHz and wavelength showing all results at once for wireless and communications, with one-click copy and offline.
Hat Size ConverterHat size converter: convert head circumference among US/EU/UK sizes with cm and inches for online hat shopping. Supports batch processing and one-click copy.
Length ConverterLength converter: convert length among meters, feet and inches with common references for engineering and daily use. Supports batch processing and one-click copy.
Fuel Economy ConverterMPG to L/100km: convert between MPG and L/100km with US and UK standards for cross-border fuel economy comparison. Supports batch processing and one-click copy.
เครื่องแปลงเลขฐานNumber base converter: convert between binary, octal, decimal and hex with live four-base view for programming, with one-click copy, offline and history.
Oven Temperature ConverterOven temperature converter: convert Celsius, Fahrenheit and gas marks with baking table for cooking, with one-click copy, offline and history.
Pressure ConverterPressure converter: convert between Pa, bar, PSI and mmHg with live table for engineering and physics, with one-click copy, offline and multilingual history.
Roman Numeral ConverterRoman numeral converter: convert between Arabic and Roman numbers with rules and validation for learning and history, with one-click copy, offline and multilingual.
Shoe Size ConverterShoe size converter: convert between CN, US, EU, JP and UK sizes with foot length CM for shopping, with one-click copy, offline and multilingual.
Speed ConverterSpeed converter: convert between m/s, km/h, mph and knots showing all units at once for travel and engineering, with one-click copy and offline.
Temperature ConverterTemperature converter: convert between Celsius, Fahrenheit and Kelvin with live table for daily and science, with one-click copy, offline and multilingual.
Time Units ConverterTime units converter: convert between seconds, minutes, hours, days, weeks, years with live table for study and daily, with one-click copy, offline.
Torque ConverterTorque converter: convert N·m, lb·ft and kg·m with base rates and vehicle references for automotive and mechanical desi Supports batch processing and one-click copy.
เครื่องแปลงหน่วยUnit converter: convert length, weight, temperature and data storage units with common pairs for daily, with one-click copy and offline.
Volume ConverterVolume converter: convert between liters, mL, m³, gallons and cups with all results at once for kitchen, one-click copy and offline.
Weight ConverterWeight converter: convert between kg, lb, oz and more with live table for daily and science, with one-click copy, offline and multilingual.
Finance
Loan, interest and finance calculators
100-Day Savings Challenge100 day savings challenge: generate plan and total by 1-100 incremental savings with progress visualization for habit and finance, with one-click with one-click.
52-Week Savings ChallengeSave progressively each week for a year with a full weekly plan, average and total. Supports batch processing and one-click copy, offline use.
Advance Salary CalculatorAdvance salary calculator: enter advance amount, months and monthly rate to get EMI, total repayment and interest for employees and HR, multilingual.
Africa Income Tax EstimatorAfrica income tax estimator: enter annual income and rate to estimate tax and take-home for African countries, multilingual.
Africa Mobile Money CalculatorAfrica mobile money calculator: enter amount and fee to get fee and net for M-Pesa/Airtel, multilingual.
Loan Amortization ScheduleAmortization schedule generator: create monthly payment breakdown and chart from amount, rate and term for mortgage and finance, with one-click copy, offline.
APR to APY ConverterConvert between APR and APY with different compounding frequencies. Converts APY and APR with compounding frequency. Supports batch processing and one-click copy.
Australia Medicare Levy CalculatorAustralia Medicare Levy Calculator: enter key parameters for quick estimate, built for overseas users.
Australia Payg Withholding CalculatorAustralia Payg Withholding Calculator: enter key parameters for quick estimate, built for overseas users.
Australia Super CalculatorAustralia super calculator: enter salary to compute 12% Super Guarantee for Australia.
Bahrain Vat CalculatorBahrain Vat Calculator: enter key parameters for quick estimate, built for overseas users.
Bill SplitterBill splitter calculator: get per person share from total and count with tip and tax for dining and AA, with one-click copy, offline.
Bond Yield CalculatorBond yield calculator: get yield to maturity from price, coupon and term with comparison for investment, with one-click copy, offline.
Brazil DAS CalculatorBrazil DAS calculator: enter monthly revenue to estimate Simples Nacional DAS for Brazil SMEs.
Brazil Inss 13th CalculatorBrazil Inss 13th Calculator: enter key parameters for quick estimate, built for overseas users.
Brazil Inss CalculatorBrazil Inss Calculator: enter key parameters for quick estimate, built for overseas users.
Brazil Irrf CalculatorBrazil Irrf Calculator: enter key parameters for quick estimate, built for overseas users.
BTC to Sats ConverterBTC to sats converter: convert Bitcoin and satoshis instantly, 1 BTC = 100,000,000 sats with decimal control and copy for Lightning and crypto payments.
Monthly Budget CalculatorBudget calculator: enter income and expenses to compute balance, savings rate and annual savings with 50/30/20 view. Supports batch processing and one-click copy.
50/30/20 Budget CalculatorBudget rule calculator: split monthly income into needs, wants and savings with custom ratios and charts for finance and budgeting, with one-click copy and offline.
Burn Rate CalculatorBurn rate calculator: enter monthly spend, revenue and cash to get net/gross burn rate and runway in months with trend chart for startups and fundraising.
Customer Acquisition Cost CalculatorCAC calculator: enter marketing and sales spend and new customers to get CAC, payback period and LTV/CAC ratio with channel comparison for growth.
CAGR CalculatorCAGR calculator: calculate compound annual growth rate and total return from start, end values and years for investment, with one-click copy and offline.
Canada GST/HST CalculatorCanada GST/HST calculator: enter net price and rate to get gross for Canada.
Car Lease CalculatorCar lease calculator: enter price, down payment, residual, term and APR to estimate monthly payment, total lease cost and buyout with tax comparison.
Car Loan CalculatorCar loan calculator: calculate loan amount, monthly payment and total interest from price, down payment and rate, one-click copy and offline.
Monthly Cash Flow CalculatorCash flow calculator: enter monthly income and fixed/variable expenses to get surplus, annual cash flow, savings rate and expense breakdown with charts.
Churn Rate CalculatorChurn calculator: enter start, new and lost users to get churn, retention and revenue churn. For SaaS. Supports batch processing, export and one-click copy.
Closing Cost CalculatorClosing cost calculator: enter price, loan and local taxes to estimate closing fees, commission, deed tax and total cost with breakdown for home buying.
COGS CalculatorCOGS calculator: enter beginning inventory, purchases and ending inventory to get COGS, gross profit and margin with breakdown and trends for retail.
เครื่องคิดเลขดอกเบี้ยทบต้นCompound interest: compute final amount and interest from principal, rate and monthly investment with growth chart. Supports batch processing and one-click copy.
CPC / CPM CalculatorCPC/CPM calculator: calculate CPM from CPC and CTR or reverse to CPC showing cost per thousand for advertising and budgeting, with one-click copy and offline.
Credit Card Payment CalculatorCredit card payment calculator: enter balance, APR and payment to estimate payoff time, total interest and minimum payment impact for debt planning.
Credit Card Payoff CalculatorCredit card payoff: enter balance, APR and payment to compute months, total interest and schedule. Supports batch processing, export and one-click copy.
Crypto Profit CalculatorCrypto profit calculator: calculate cost, profit and ROI from buy price, sell price, quantity and fees for trading, one-click copy and offline.
Currency Conversion Salary CalculatorCurrency Conversion Salary Calculator: enter key parameters for quick estimate, built for overseas users.
Czech Income Tax CalculatorCzech Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Debt Payoff CalculatorDebt payoff calculator: enter multiple debts with balance, rate and payment to get payoff time and total interest by snowball and avalanche methods.
Debt-to-Income CalculatorDebt-to-income calculator: calculate DTI from debt and income with payment cap and loan reference for credit and home buying, with one-click copy and offline.
Dividend CalculatorDividend calculator: estimate first-year dividend, yield and multi-year cumulative income from price, dividend per share and holdings for investment, one-click copy.
Dominican Isr CalculatorDominican Isr Calculator: enter key parameters for quick estimate, built for overseas users.
Dual Currency Salary CalculatorDual Currency Salary Calculator: enter key parameters for quick estimate, built for overseas users.
Early Repayment CalculatorEarly repayment calculator: support reducing monthly payment or shortening term for mortgages with interest savings, with one-click copy and offline.
Egypt Income Tax CalculatorEgypt Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Egypt Social Insurance CalculatorEgypt Social Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Emergency Fund CalculatorEmergency fund calculator: calculate reserve target from monthly expenses with 3/6/12 month tiers for family finance planning, with one-click copy and offline.
EMI CalculatorEMI calculator: enter principal, annual rate and term to get monthly payment, total interest and amortization schedule for home and auto loans.
Envelope Savings ChallengeEnvelope challenge: generate 100-day envelope saving plan with total tracking, custom amounts and progress for savings habits.
EPF CalculatorEPF calculator India: calculate monthly employee and employer contributions and maturity from basic salary and rate for payroll, with one-click copy and offline.
EU VAT OSS CalculatorEU VAT OSS calculator: enter net price and destination VAT rate to get gross and VAT for cross-border e-commerce.
EU VAT Reverse CalculatorEU VAT reverse calculator: enter tax-included price and VAT rate to get pre-tax price and VAT for cross-border e-commerce, multilingual.
Eu Vat Reverse Charge CalculatorEu Vat Reverse Charge Calculator: enter key parameters for quick estimate, built for overseas users.
Expat Cost Of Living CalculatorExpat Cost Of Living Calculator: enter key parameters for quick estimate, built for overseas users.
Expat Tax Equalization CalculatorExpat Tax Equalization Calculator: enter key parameters for quick estimate, built for overseas users.
Fixed Deposit CalculatorFD calculator: enter principal, annual rate and term to get maturity amount, interest and APY with compounding and premature withdrawal for savings.
Financial Independence CalculatorFIRE calculator: enter expenses, withdrawal rate and savings to estimate target assets and years to financial independence. Supports batch export and one-click copy.
Finland Income Tax CalculatorFinland Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
FIRE Number CalculatorFIRE number: get FIRE target and time to goal by annual expenses and withdrawal rate with inflation and return simulation for early retirement.
Fixed Deposit CalculatorFixed deposit calculator: enter principal, rate and years to get maturity, interest and APY with simple vs compound comparison for savings, with copy and multilingual.
Foreign Tax Credit CalculatorForeign Tax Credit Calculator: enter key parameters for quick estimate, built for overseas users.
France Income Tax CalculatorFrance income tax calculator: enter annual income to estimate impôt (2024 progressive) for France.
Germany Solidarity Surcharge CalculatorGermany Solidarity Surcharge Calculator: enter key parameters for quick estimate, built for overseas users.
Germany VAT CalculatorGermany VAT calculator: enter net price to compute 19% or 7% VAT for Germany.
Germany Wage Tax CalculatorGermany wage tax calculator: enter annual income to estimate Lohnsteuer (2024 brackets) for Germany.
Ghana Ssnit CalculatorGhana Ssnit Calculator: enter key parameters for quick estimate, built for overseas users.
Global Mobility Tax CalculatorGlobal Mobility Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Gratuity CalculatorGratuity calculator: enter last salary and years of service to get gratuity (15/26 rule) with copy for HR, multilingual.
Home Equity CalculatorHome equity calculator: calculate equity and loan-to-value ratio from home value and loan for property, with one-click copy and offline.
Home Insurance EstimatorHome insurance calculator: estimates annual and monthly premium by home value, rate and deductible. Supports batch processing, export and one-click copy, sharing.
Hongkong Salaries Tax CalculatorHongkong Salaries Tax Calculator: enter key parameters for quick estimate, built for overseas users.
House Affordability CalculatorHouse affordability: estimate affordable price and monthly payment by income, down payment, rate and debts for home buy Supports batch processing and one-click copy.
เครื่องคำนวณสินเชื่อกองทุนสำรองเลี้ยงชีพ (อัตราดอกเบี้ยล่าสุด 2026)เครื่องคำนวณสินเชื่อที่อยู่อาศัยกองทุนสงเคราะห์: จับคู่อัตราดอกเบี้ยล่าสุดปี 2026 อัตโนมัติ (ชุดแรกมากกว่า 5 ปี 2.6%, ชุดที่สองมากกว่า 5 ปี 3.075%, ต่ำกว่า 5 ปีสลับอัตโนมัติ) รองรับการเปรียบเทียบระหว่างการชำระคงที่/การชำระเงินต้นคงที่/ทั้งสองวิธี สร้างตารางแผนการชำระคืนแบบสมบูรณ์และสามารถส่งออกเป็น CSV ได้
HRA CalculatorHRA calculator India: calculate tax-exempt allowance from basic salary, rent and HRA for Indian payroll, with one-click copy and offline.
India Epf CalculatorIndia Epf Calculator: enter key parameters for quick estimate, built for overseas users.
India GST CalculatorIndia GST calculator: enter net price to compute GST 5/12/18/28% for India.
India Income Tax CalculatorIndia income tax calculator: enter annual income, deductions and regime (old/new) to get tax and take-home with multilingual.
India Tds CalculatorIndia Tds Calculator: enter key parameters for quick estimate, built for overseas users.
Inflation CalculatorInflation calculator: get purchasing power change and future value by year and inflation rate with multi-currency for finance.
Installment Fee CalculatorInstallment calculator: calculate total fees and monthly payment from amount and rate for credit, with one-click copy and offline.
International School Fee CalculatorInternational School Fee Calculator: enter key parameters for quick estimate, built for overseas users.
Investment Growth CalculatorInvestment growth calculator: enter principal, monthly contribution and return to get final assets and gains. Supports batch processing, export and one-click copy.
Invoice GeneratorInvoice generator: add business & client info and line items to auto-calc subtotal, tax, discount and total with copy and print, for freelancers and small business, offline and multilingual.
Iran Income Tax CalculatorIran Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Ireland Paye CalculatorIreland Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Israel Bituah Leumi CalculatorIsrael Bituah Leumi Calculator: enter key parameters for quick estimate, built for overseas users.
Japan Consumption Tax CalculatorJapan consumption tax calculator: enter pre-tax or tax-included price and rate (8%/10%) to get tax for shopping in Japan, multilingual.
Japan Nenkin CalculatorJapan nenkin calculator: enter monthly salary to estimate pension for Japan.
Japan Withholding Tax CalculatorJapan Withholding Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Japan Year End Adjustment CalculatorJapan Year End Adjustment Calculator: enter key parameters for quick estimate, built for overseas users.
Kelly Criterion CalculatorKelly criterion: get optimal bet fraction and position by win rate and odds for investment and bankroll management. Supports batch processing and one-click copy.
Kenya Nssf CalculatorKenya Nssf Calculator: enter key parameters for quick estimate, built for overseas users.
Kenya Paye CalculatorKenya Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Kisan Vikas Patra CalculatorKVP calculator: enter principal to get doubling period and maturity for Indian savings, multilingual.
Korea Employment Insurance CalculatorKorea Employment Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Korea Health Insurance CalculatorKorea Health Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Kuwait Indemnity CalculatorKuwait Indemnity Calculator: enter key parameters for quick estimate, built for overseas users.
Leverage CalculatorLeverage calculator: enter margin, leverage and entry price to get position value, liquidation price and PnL for futures risk management.
Liquidation Price CalculatorLiquidation price: get long/short liquidation and maintenance margin by margin, leverage and entry price for futures risk and stops.
Loan Affordability CalculatorLoan affordability calculator: estimate maximum affordable payment and loan from income and debt ratio for home buying, with one-click copy and offline.
Loan Comparison CalculatorLoan comparison: enter multiple loans with amount, rate and term to compare monthly payment, total interest and cost for mortgages.
Customer LTV CalculatorCustomer LTV calculator: estimate LTV and CAC ceiling from revenue per customer, margin and churn for subscription, one-click copy, offline and multilingual.
Mexico Aguinaldo CalculatorMexico Aguinaldo Calculator: enter key parameters for quick estimate, built for overseas users.
Mexico Imss CalculatorMexico Imss Calculator: enter key parameters for quick estimate, built for overseas users.
Mexico IVA CalculatorMexico IVA calculator: enter net price to compute 16% IVA for Mexico.
Mexico Ptu CalculatorMexico Ptu Calculator: enter key parameters for quick estimate, built for overseas users.
Mobile Money Fee CalculatorMobile money fee calculator: enter amount and fee rate to get fee and net receipt for M-Pesa/MTN in Africa, multilingual.
Morocco Ir CalculatorMorocco Ir Calculator: enter key parameters for quick estimate, built for overseas users.
Mortgage CalculatorMortgage calculator: support equal-payment and equal-principal mortgages with price and rate for home buying, with one-click copy and offline.
Myanmar Income Tax CalculatorMyanmar Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Nepal Income Tax CalculatorNepal Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Nepal Social Security CalculatorNepal Social Security Calculator: enter key parameters for quick estimate, built for overseas users.
Net Worth CalculatorNet worth calculator: group assets and liabilities to calculate net worth and debt ratio for finance and planning, with one-click copy and offline.
Netherlands 30 Ruling CalculatorNetherlands 30 Ruling Calculator: enter key parameters for quick estimate, built for overseas users.
Netherlands Box Tax CalculatorNetherlands Box Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Newzealand Kiwisaver CalculatorNewzealand Kiwisaver Calculator: enter key parameters for quick estimate, built for overseas users.
Nigeria PAYE CalculatorNigeria PAYE calculator: enter annual income to estimate PAYE for Nigeria.
NSC CalculatorNSC calculator: enter principal and years to get maturity and interest for Indian savings, multilingual.
Paraguay Irp CalculatorParaguay Irp Calculator: enter key parameters for quick estimate, built for overseas users.
Personal Loan CalculatorPersonal loan calculator: get monthly payment, total interest and schedule from amount, rate and term with equal options for planning, with one-click copy, offline.
Peru Gratificacion CalculatorPeru Gratificacion Calculator: enter key parameters for quick estimate, built for overseas users.
Peru Quinta Categoria CalculatorPeru Quinta Categoria Calculator: enter key parameters for quick estimate, built for overseas users.
Philippines Pagibig CalculatorPhilippines Pagibig Calculator: enter key parameters for quick estimate, built for overseas users.
Philippines Philhealth CalculatorPhilippines Philhealth Calculator: enter key parameters for quick estimate, built for overseas users.
Philippines Withholding Tax CalculatorPhilippines Withholding Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Pip Value CalculatorPip calculator: get pip value and profit from pair, lot size and rate with multi-asset and leverage for forex risk, with one-click copy, offline and multilingual.
Portugal Irs CalculatorPortugal Irs Calculator: enter key parameters for quick estimate, built for overseas users.
Position Size CalculatorPosition size calculator: get size and lots from balance, risk percent and stop loss for stocks and forex with profit estimate, with one-click copy, offline.
PPF CalculatorPPF calculator: compute maturity and interest from yearly deposit, rate and term with India PPF table for savings, with one-click copy, offline.
Pricing CalculatorPricing calculator: get price, profit and discount from cost, margin and tax with bulk and formula for e-commerce, with one-click copy, offline and multilingual.
Property Tax CalculatorProperty tax calculator: get annual and monthly tax from price, rate and exemptions with regional rules and comparison for home buying, with one-click copy, offline.
Qatar Gratuity CalculatorQatar Gratuity Calculator: enter key parameters for quick estimate, built for overseas users.
Ratio SplitterRatio splitter: allocate total by ratios to items with amount and percent, custom weight and precision for bonuses and resources, with one-click with one-click.
RD CalculatorRD calculator: enter monthly deposit, rate and years to get maturity, interest and APY for recurring deposit, multilingual with copy.
Refinance CalculatorRefinance calculator: compare original vs new loan for payment, total interest and break-even with fees and term for mortgage decisions, with with one-click copy,.
Relocation Cost CalculatorRelocation Cost Calculator: enter key parameters for quick estimate, built for overseas users.
Rent-to-Income RatioRent income ratio calculator: get rent to income percent with burden assessment and tips from rent and income for budgeting, with one-click copy, with one-click.
Rent vs Buy CalculatorRent vs buy calculator: compare long-term cost, assets and break-even years for renting vs buying with down payment, rate and rent growth, with with one-click copy,.
Retirement CalculatorRetirement calculator: inputs current and retirement age and savings to estimate funds. Supports batch processing, export and one-click copy, sharing.
Risk / Reward Ratio CalculatorRisk reward ratio calculator: get ratio and profit loss from entry, stop loss and take profit for trading and money management, with one-click copy, with one-click.
ROAS CalculatorROAS calculator: get return on ad spend from spend and revenue with optimization tips for e-commerce and ads, with one-click copy, offline and multilingual.
Rule of 72 CalculatorRule of 72 calculator: estimate doubling time from annual return with formula and sensitivity for investment, with one-click copy, offline and multilingual.
Sales Target CalculatorSales target calculator: get required traffic and orders from target, AOV and conversion with team allocation and tracking for sales planning, with with one-click.
Saudi Gosi CalculatorSaudi Gosi Calculator: enter key parameters for quick estimate, built for overseas users.
Savings Goal CalculatorSavings goal calculator: calculate monthly saving needed from target, years and return for home and education, with one-click copy and offline.
Senior Citizen Savings CalculatorSenior citizen savings calculator: enter principal and years to get maturity for Indian seniors, multilingual.
Singapore Work Permit Levy CalculatorSingapore Work Permit Levy Calculator: enter key parameters for quick estimate, built for overseas users.
Sinking Fund CalculatorSinking fund calculator: calculate monthly deposit needed to reach a goal or find time for planning, with one-click copy and offline.
SIP CalculatorSIP calculator: calculate maturity value and returns from monthly amount and return for wealth, with one-click copy and offline.
South Africa Paye CalculatorSouth Africa Paye Calculator: enter key parameters for quick estimate, built for overseas users.
South Africa Tax CalculatorSouth Africa tax calculator: enter annual income to estimate tax (2024 brackets) for South Africa.
Spain Irpf CalculatorSpain Irpf Calculator: enter key parameters for quick estimate, built for overseas users.
Stock Average Down CalculatorStock average down calculator: calculate average cost, total cost and profit/loss from multiple buys for cost averaging, with one-click copy and offline.
Stock Average Price CalculatorStock average price calculator: get average cost and profit from multiple buys with add reduce simulation for investment, with one-click copy, offline.
Stock Profit CalculatorStock profit calculator: calculate profit/loss, return rate and fees from buy price, sell price, shares and rate for investors, with one-click copy and offline.
Stock Split CalculatorStock split calculator: computes ex-price, shares and market cap by split ratio. For investment. Supports batch processing, export and one-click copy, sharing.
Student Loan CalculatorStudent loan calculator: get payment, total interest and schedule from amount, rate and term with grace and extra payment for education finance, with with one-click.
Sukanya Samriddhi CalculatorSukanya Samriddhi calculator: enter yearly deposit and years to get maturity for Indian families, multilingual.
Sweden Employer Contribution CalculatorSweden Employer Contribution Calculator: enter key parameters for quick estimate, built for overseas users.
Taiwan Income Tax CalculatorTaiwan Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Taiwan Labor Insurance CalculatorTaiwan Labor Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Take Profit / Stop Loss CalculatorTake profit stop loss calculator: get risk reward and profit loss from entry, take profit and stop loss for trading, with one-click copy, offline and multilingual.
Tanzania Paye CalculatorTanzania Paye Calculator: enter key parameters for quick estimate, built for overseas users.
TDS CalculatorTDS calculator: enter payment amount and TDS rate to get TDS amount and net payment for Indian finance, multilingual.
Treaty Benefit CalculatorTreaty Benefit Calculator: enter key parameters for quick estimate, built for overseas users.
Turkey Income Tax CalculatorTurkey Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Uae Vat CalculatorUae Vat Calculator: enter key parameters for quick estimate, built for overseas users.
Uganda Paye CalculatorUganda Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Dividend Tax CalculatorUk Dividend Tax Calculator: enter key parameters for quick estimate, built for overseas users.
UK Income Tax CalculatorUK income tax calculator: enter annual income to get tax and take-home for UK workers, multilingual.
Uk Inheritance Tax CalculatorUk Inheritance Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Paye CalculatorUk Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Statutory Sick Pay CalculatorUk Statutory Sick Pay Calculator: enter key parameters for quick estimate, built for overseas users.
UK VAT CalculatorUK VAT calculator: enter net price to compute 20% VAT and gross for UK.
Uk Vat Flat Rate CalculatorUk Vat Flat Rate Calculator: enter key parameters for quick estimate, built for overseas users.
Uruguay Irpf CalculatorUruguay Irpf Calculator: enter key parameters for quick estimate, built for overseas users.
US 401K CalculatorUS 401K calculator: enter salary, contribution rate and employer match to get annual contribution and retirement total for US workers, multilingual.
Us 401k Roth Comparison CalculatorUs 401k Roth Comparison Calculator: enter key parameters for quick estimate, built for overseas users.
Us 529 Plan CalculatorUs 529 Plan Calculator: enter key parameters for quick estimate, built for overseas users.
Us Earned Income Credit CalculatorUs Earned Income Credit Calculator: enter key parameters for quick estimate, built for overseas users.
Us Home Office Deduction CalculatorUs Home Office Deduction Calculator: enter key parameters for quick estimate, built for overseas users.
Us Hsa Contribution CalculatorUs Hsa Contribution Calculator: enter key parameters for quick estimate, built for overseas users.
US Income Tax EstimatorUS income tax calculator: get tax by federal and state rules with brackets and breakdown for US finance, with one-click copy, offline and multilingual.
Us Ira Contribution CalculatorUs Ira Contribution Calculator: enter key parameters for quick estimate, built for overseas users.
Us Medicare Premium CalculatorUs Medicare Premium Calculator: enter key parameters for quick estimate, built for overseas users.
US Mortgage Qualification CalculatorUS mortgage qualification calculator: enter income, debts and down payment to estimate affordable loan for US homebuyers, multilingual.
Us Overtime Pay CalculatorUs Overtime Pay Calculator: enter key parameters for quick estimate, built for overseas users.
US Payroll Withholding CalculatorUS payroll withholding calculator: enter wage and filing status to estimate federal withholding for US payroll.
Us Quarterly Estimated Tax CalculatorUs Quarterly Estimated Tax Calculator: enter key parameters for quick estimate, built for overseas users.
US Sales Tax CalculatorUS sales tax calculator: enter pre-tax price and state rate to get tax and total for shopping and e-commerce across US states, multilingual.
Us Small Business Tax CalculatorUs Small Business Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Social Security Benefits CalculatorUs Social Security Benefits Calculator: enter key parameters for quick estimate, built for overseas users.
US Social Security Tax CalculatorUS Social Security tax calculator: enter salary to compute FICA 6.2% and Medicare 1.45% (+0.9% over $200k) for US payroll.
US State Tax CalculatorUS state tax calculator: enter income and state rate to estimate state income tax for US states.
Us Student Loan Interest CalculatorUs Student Loan Interest Calculator: enter key parameters for quick estimate, built for overseas users.
US Tips Tax CalculatorUS tips tax calculator: enter tip income to estimate federal and state tax for US service workers.
Vietnam Pit CalculatorVietnam Pit Calculator: enter key parameters for quick estimate, built for overseas users.
Text
Text counting, encoding and formatting tools
Acronym GeneratorAcronym generator: convert phrases to acronyms with multi-style and readability score for branding, with one-click copy, offline and multilingual.
Add Line NumbersAdd line numbers to text with a custom start and separator. Adds line numbers with custom start and separator for code and docs.
Atbash CipherAtbash cipher tool: encrypt and decrypt by reverse alphabet substitution with case preserve for learning and fun, with one-click copy, offline.
Braille TranslatorBraille translator: convert between English, numbers, pinyin and Unicode braille dots, supports Grade 1, letters, numbers and punctuation for accessibility learning.
Bubble Text GeneratorBubble text generator: convert text to circle and bubble effect fonts with multiple styles for social and nicknames, with one-click copy and offline.
Character Frequency CounterCharacter frequency counter: count letters and words in real time with sorting for writing, with one-click copy and offline.
Email ExtractorEmail extractor: paste text to extract all email addresses with dedup, sorting and CSV export for marketing and data cleaning.
Emoji Counter & RemoverEmoji counter and remover: count emojis in text with list or remove them for clean copy with count for social and data cleaning, with one-click copy and offline.
Fancy Text GeneratorFancy text generator: convert plain text to stylish Unicode fonts with copy and social compatibility check for bios and headings.
Find and ReplaceFind and replace: paste text to batch find and replace by keyword with regex, case and whole word for text cleaning and editing.
Keyword Density CheckerKeyword density checker: count occurrences, density and frequency per 100 words for keywords with SEO tips, one-click copy, offline and multilingual.
Leetspeak ConverterLeetspeak converter: convert between English and leet with multiple strength levels and custom mapping for fun and password ideas.
Add / Remove Line NumbersLine numberer: add line numbers to text with custom formats and start value or remove them in bulk for code and docs, with one-click copy and offline.
ตัวสร้าง Lorem IpsumLorem Ipsum generator: generate placeholder text with custom paragraphs and sentences for layouts and prototypes, multilingual, one-click copy and offline.
Mocking Text GeneratorMock text generator: create placeholder text by word and paragraph count with multiple styles and languages for design and prototyping.
Number to ChineseNumber to Chinese converter: convert numbers to financial uppercase and lowercase Chinese for invoices and contracts, with one-click copy and offline.
Numbered List GeneratorNumbered list generator: add numeric, alpha or roman numbers to lines with custom start and delimiter for docs, with one-click copy, offline and history.
Outline GeneratorOutline generator: enter topic and points to build hierarchical outline and headings for writing and courses, with one-click copy, offline and history.
Palindrome CheckerPalindrome checker: test words and numbers for palindrome ignoring case and punctuation with highlight for learning, with copy, offline and multilingual.
Readability ScoreReadability checker: measure English readability with Flesch formula for writing and education, with one-click copy and offline.
Reading Time CalculatorReading time calculator: estimate reading time at 300 chars per minute Chinese for content, with one-click copy and offline.
Remove Line BreaksRemove line breaks tool: bulk remove or replace line breaks and empty lines with paragraph keep for formatting and cleaning, with one-click copy, with one-click.
เครื่องมือกลับข้อความReverse text tool: reverse text by character, word or line with bulk and preview for fun and processing, with one-click copy, offline and multilingual.
Speaking Time CalculatorSpeaking time calculator: get speaking time from word count and speed with paragraph estimate and pacing tips for speeches, with one-click copy, offline.
Superscript / Subscript ConverterSuperscript subscript converter: batch convert text to superscript or subscript with numbers and symbols for papers and formulas, with one-click copy, offline.
Text DeduplicatorText deduplicator: bulk remove duplicate lines with case and space options and stats for cleaning and lists, with one-click copy, offline and multilingual.
Text RepeaterText repeater: repeat text by count with delimiter and newline for spamming and testing, with one-click copy, offline and multilingual.
Text ReverserText reverser tool: reverse text by character, word or line with bulk and preview for fun and processing, with one-click copy, offline.
Text ShufflerText shuffler: randomly shuffle lines or words with dedup and seed for draws and fun, with one-click copy, offline and multilingual.
เครื่องมือเรียงลำดับบรรทัดข้อความText sorter: sort lines by alpha, length or numeric with dedup and reverse for lists and data, with one-click copy, offline.
Text SummarizerText summarizer: auto extract key sentences to summary with length and language for reading and content, with one-click copy, offline and multilingual.
Text to HTML Paragraphs ToolText to HTML: paste plain text to get paragraph, line break and escaped HTML with Markdown style and copy for editors and emails.
Upside Down Text ConverterUpside-down text generator: convert text to upside-down and mirrored fonts with multi-line support for social media and nicknames, with one-click copy and offline.
URL ExtractorURL extractor: bulk extract URLs from text with dedup, stats and validation for content and cleaning, with one-click copy, offline.
URL Slug GeneratorURL slug generator: convert titles to SEO friendly slugs with multi-language and custom delimiter for content and sites, with one-click copy, offline.
Vaporwave Text GeneratorVaporwave text generator: convert text to fullwidth vaporwave style with effects for social and design, with one-click copy, offline.
Word Cloud GeneratorWord cloud generator: create word cloud from text with shape, color and weight for visualization, with one-click copy, offline and multilingual.
Developer
JSON, regex, CSV and developer tools
ASCII TableASCII table tool: lookup char decimal, hex and binary with search and copy for development and learning, with one-click copy, offline.
Base32 ConverterBase32 converter tool: support Base32 encoding and decoding with padding and bulk for development, with one-click copy, offline.
Base64 Image ViewerBase64 image viewer: paste Base64 to preview image with size and format conversion for development, with one-click copy, offline.
Brazil CPF ValidatorBrazil CPF validator: enter 11-digit CPF to validate for Brazil, multilingual.
Brazil PIX Key ValidatorBrazil PIX validator: enter CPF/CNPJ/email/phone/random key to validate PIX format for Brazil.
Conic Gradient GeneratorConic gradient generator: adjust angle, stops and center with live preview and CSS copy, animated for front-end gradien Supports batch processing and one-click copy.
Credit Card ValidatorCredit card validator: validate numbers with Luhn and detect Visa and Mastercard for payments and fraud prevention, with one-click copy and offline.
Cron Expression GeneratorCron generator: visually pick minute/hour/day/month/week to build Cron, parse and preview next runs for scheduling and DevOps.
Crypto Address ValidatorCrypto address validator: validate BTC/ETH and multi-chain formats with checksum, chain hints and error tips before transfers.
CSS Easing GeneratorCSS easing generator: visually adjust cubic-bezier curve to generate transition code with live preview for frontend and animation, with one-click copy and offline.
CSS Specificity CalculatorCSS specificity calculator: enter any selector to get specificity a,b,c with priority and override explanation for frontend debugging, one-click copy and offline.
CSS Units ConverterCSS units converter: convert px, rem, em, vw/vh and % by base font with responsive preview for front-end layouts. Supports batch processing and one-click copy.
แปลง CSV เป็น JSONCSV to JSON converter: convert tabular data to JSON array with delimiters and header detection for data, with one-click copy and offline.
CSV ViewerCSV viewer: paste CSV data to parse as table supporting comma, semicolon and Tab with quoted fields for data viewing and cleaning, with one-click copy and offline.
HTTP to cURL ConvertercURL converter: generate cURL commands from method, URL, headers and body with import for API debugging, with one-click copy and offline.
cURL to HTTP RequestcURL to HTTP parser: paste cURL to get method, URL, headers and body with highlighting and copy for API debugging and d Supports batch processing and one-click copy.
Email Address ValidatorEmail validator: check length, username and domain labels with clear tips per RFC for registration, with one-click copy and offline.
EU VAT Number ValidatorEU VAT number validator: enter VAT number to validate format with country prefix.
Excel Column Letter ConverterExcel column name converter: convert between letters and numbers A1 AB28 XFD16384 bidirectionally with batch for spreadsheets, with one-click copy and offline.
Excel Formula GeneratorExcel formula generator: pick function type and fill parameters to generate copy-ready formulas with examples for spreadsheets, with one-click copy and offline.
File Hash CalculatorFile hash calculator: compute SHA-1 and SHA-256 checksums of files locally for privacy for verification and security, with one-click copy and offline.
File to Base64File to Base64: upload any file to generate Base64 and Data URL with image preview and copy for front-end embedding and API debugging.
Flexbox GeneratorFlexbox generator: adjust direction, alignment and gap with live preview and CSS copy for front-end flex layouts and responsive design.
Git CheatsheetGit cheatsheet: browse common commands by scenario like commit and branch with search and copy for developers, with one-click copy and offline.
Git Commit Message GeneratorGit commit message generator: generate Conventional Commits messages with type and scope for development and collaboration, with one-click copy and offline.
Hex Dump ToolHex dump viewer: upload file or paste text to get hex and ASCII view with offset, width and search for reverse engineering and debugging.
hreflang Tag GeneratorHreflang generator: generate alternate link tags for multilingual sites with validation for SEO, with one-click copy and offline.
HTML Entities Encode/DecodeHTML entities converter: encode special characters to HTML entities or decode back with preview for web, with one-click copy and offline.
HTML PrettifierHTML formatter: paste HTML to beautify or minify with highlighting and error hints for front-end and code cleanup. Supports batch processing and one-click copy.
HTML Live PreviewHTML preview: paste HTML/CSS/JS for live rendered preview with split view and copy for front-end debugging and template Supports batch processing and one-click copy.
HTML to JSXHTML to JSX: transforms HTML snippets to React JSX handling class and style. For frontend. Supports batch processing, export and one-click copy, offline use.
HTML to Text ToolHTML to text: extract text from HTML preserving paragraphs with tag stripping and entity decoding for content cleaning. Supports batch processing and one-click copy.
HTTP Methods ReferenceHTTP methods reference: explains GET, POST, PUT, PATCH, DELETE usage and idempotency. Supports batch processing, export and one-click copy, offline use.
IBAN ValidatorIBAN validator: validate country code length and mod-97 checksum for international transfers, with one-click copy and offline.
India PAN ValidatorIndia PAN validator: enter 10-character PAN to validate format for India.
Japan Invoice Number ValidatorJapan invoice number validator: enter 13-14 digit registration number to validate for Japan.
Japan My Number ValidatorJapan My Number validator: enter 12-digit number to validate checksum for Japan.
JSON Diff ToolJSON diff tool: paste two JSON documents to find added, removed and changed paths with highlighting for API and config comparison, with one-click copy and offline.
จัดรูปแบบ/บีบอัด/ตรวจสอบ JSONJSON formatter: paste JSON to beautify, minify and validate with highlighting and error location for dev debugging. Supports batch processing and one-click copy.
JSON Formatter & ValidatorJSON formatter: beautify, validate and minify to single line with custom indent and character count for development and debugging, with one-click copy and offline.
JSON MergeJSON merge: merge multiple JSON objects with deep merge and conflict strategies for config and data integration. Supports batch processing and one-click copy.
JSON Minifier & BeautifierJSON minifier and beautifier: compress or beautify JSON showing byte count and savings in real time for API debugging, with one-click copy and offline.
JSON Path QueryJSON path query tool: enter JSON and dot-path with array indexes to extract values quickly with highlighting for API debugging, one-click copy and offline.
JSON Schema GeneratorJSON Schema generator: pastes sample JSON to auto generate JSON Schema with nested fields. Supports batch processing, export and one-click copy, offline use.
JSON to Markdown TableJSON to Markdown converter: convert object array to Markdown table with header and alignment for docs and README, with one-click copy and offline.
JSON to XMLJSON to XML converter: paste JSON to get well-formed XML with attribute and array handling, formatting and validation for integration.
CSS Loader GeneratorLoader generator: customize spinner, skeleton and progress loaders with CSS copy for front-end loading states. Supports batch processing and one-click copy.
Markdown Live EditorMarkdown editor: edit on left and preview on right supporting headings, lists and code blocks for writing and docs, with one-click copy and offline.
SEO Meta Tags GeneratorMeta tags generator: enter title, description and keywords to generate SEO Meta and Open Graph tags for web optimizatio Supports batch processing and one-click copy.
Mexico CURP ValidatorMexico CURP validator: enter 18-character CURP to validate format for Mexico.
Mexico RFC ValidatorMexico RFC validator: enter RFC to validate format for Mexico SAT.
Neumorphism GeneratorNeumorphism generator: adjust shadow, radius and background with live preview and CSS copy for card and button design. Supports batch processing and one-click copy.
Password Entropy CalculatorPassword entropy calculator: analyze charset, length and entropy with crack time estimate for security, with one-click copy and offline.
Random Password GeneratorRandom password generator: customize length and character types showing entropy for accounts, with one-click copy and offline.
PX to REM / EM ConverterPX to REM converter: convert px, rem and em based on root font size 16px for responsive and mobile styles, with one-click copy and offline.
README GeneratorREADME generator: enter project name, description, install and usage to generate standard Markdown README for open source and docs, with one-click copy and offline.
Regex EscapeRegex escape tool: auto escape strings for regex with bulk and preview for development and text processing, with one-click copy, offline and multilingual.
เครื่องมือทดสอบ Regular ExpressionRegex tester: test regex against text with live highlighting and match count for development, with one-click copy and offline.
robots.txt GeneratorRobots.txt generator: create crawler rules with allow disallow, sitemap and validation for SEO and site management, with one-click copy, offline and multilingual.
SemVer CompareSemVer compare tool: compare two versions and parse major minor patch and prerelease for dev and release management, with one-click copy, offline.
Sitemap GeneratorSitemap generator: create XML sitemap from URL list with priority and frequency for SEO and site management, with one-click copy, offline and multilingual.
JSON-LD Structured Data GeneratorStructured data generator: create JSON-LD by type with validation and preview for SEO and site management, with one-click copy, offline and multilingual.
เครื่องมือเปรียบเทียบความแตกต่างของข้อความText diff tool: highlight differences between two texts with line and character diff for proofing and version compare, with one-click copy, offline.
CSS Transform GeneratorTransform generator: visually generate CSS transform code with translate, rotate and scale preview for frontend and design, with one-click copy, offline.
User-Agent GeneratorUser agent generator: create random UA for browsers and devices with custom and bulk for testing and crawling, with one-click copy, offline.
XML FormatterXML formatter: beautify with indentation supporting comments and CDATA with validation for config, with one-click copy and offline.
Generators
Password, UUID and random generators
ASCII Art GeneratorTurn text into large ASCII art characters for nicknames and posts. Converts text to ASCII art with multiple fonts. Supports batch processing and one-click copy.
Business Name GeneratorBusiness name generator: generate tech and classic style candidates from keywords with filtering for startups, with one-click copy and offline.
Card Deck & DealCard deck dealer: shuffle and deal from 52 cards without duplicates, custom players and counts. Supports batch export, one-click copy and sharing.
China ID Card Validator & GeneratorChina ID card validator: validate 18-digit format rules including region and checksum for development and testing, with one-click copy and offline.
เครื่องมือโยนเหรียญCoin flip: simulate fair coin toss, multiple flips and stats with custom heads/tails labels and history for draws and probability demos.
เครื่องทอยลูกเต๋าDice roller: roll 1-20 dice with multiple sides automatically summing total for board games, with one-click copy and offline.
EAN-13 Barcode GeneratorEAN-13 barcode generator: enter 12 digits to calculate check digit and generate printable barcodes for retail and inventory, with one-click copy and offline.
English Name GeneratorEnglish name generator: generate names by gender, style and initial with meaning and pronunciation, with favorites and copy for naming and characters.
Fake Person GeneratorFake person generator: generate complete profiles with name, gender, age, email, phone, city and job for testing and demo data, with one-click copy and offline.
IMEI Validator & GeneratorIMEI generator and validator: validate and generate 15-digit IMEI codes with Luhn check digit for testing and device management, with one-click copy and offline.
License Key GeneratorLicense key generator: create software license keys by pattern with grouping, checksum and batch export for dev testing and licensing.
Lottery Number GeneratorLottery generator: randomly generates numbers for Powerball, Mega Millions and local lotteries. Supports batch processing, export and one-click copy, sharing.
Card Number Generator & Validator (Luhn)Validate or generate test card numbers for Visa, Mastercard, Amex, Discover, UnionPay and JCB using the Luhn algorithm.
Nickname GeneratorNickname generator: create cute, cool, neutral or vintage handles in Chinese or English with length and count for games and social, with one-click copy, offline and history.
Passphrase GeneratorPassphrase generator: creates memorable long passwords from random words. Supports batch processing, export and one-click copy, offline use and sharing.
Password Strength CheckerPassword strength checker: evaluate length and complexity with crack time and tips locally offline for safety, with one-click copy and multilingual.
Pet Name GeneratorPet name generator: generate cute pet names by species, gender and style with favorites and copy for new pets. Supports batch processing and one-click copy.
PIN GeneratorPIN generator: random 4-8 digit PINs with no-repeat, memorable and bulk options for cards, locks and codes, with one-click copy, offline and multilingual.
Batch QR Code GeneratorBatch QR generator: create QR codes in bulk from texts or links with size, error correction and batch export for marketing, with one-click copy, with one-click.
QR Code GeneratorQR code generator: generate scannable QR codes from text or URLs with error correction and download for sharing and marketing, with one-click copy and offline.
Random Address GeneratorRandom address generator: create random street, city and postcode addresses in multi-country formats with count and format for testing, with with one-click copy,.
Random Bytes GeneratorRandom bytes generator: generate random hex bytes for keys and salts with custom length and count for development, with one-click copy and offline.
Random Coordinates GeneratorRandom coordinates generator: generate random latitude longitude within range with map preview and batch export for testing and geo demo, with with one-click copy,.
Random Country GeneratorRandom country generator: draw by count and region showing country names and ISO codes for testing, with one-click copy and offline.
Random Date GeneratorRandom date generator: create random dates and times within range with format, count and weekday filter for testing and draws, with one-click copy, with one-click.
Random Email GeneratorRandom email generator: create valid random email addresses with domain, count and batch export for testing and demo, with one-click copy, offline and multilingual.
Random Emoji GeneratorRandom emoji generator: generate random emojis by category and count with one-click copy for chat and design fun, with offline and multilingual history.
Random Letter GeneratorRandom letter generator: create random letters by count, case and uniqueness with custom charset for draws, games and passwords.
Random Name GeneratorRandom name generator: create realistic names by gender, region and count in Chinese and English for testing and writing, with one-click copy, with one-click copy,.
เครื่องสร้างตัวเลขสุ่มRandom number generator: create random integers or decimals by range, count and uniqueness with sort and stats for draws, with one-click copy, with one-click copy,.
Random Phone Number GeneratorRandom phone generator: create valid mobile numbers by prefix, region and count with batch export for testing, with one-click copy, offline and multilingual.
Random Quote GeneratorRandom quote generator: show random motivational, literary and movie quotes by category with save and share for writing inspiration, with one-click with one-click.
Random Sentence GeneratorRandom sentence generator: create fluent sentences by topic and length with count and style for writing and testing, with one-click copy, offline and multilingual.
Random String GeneratorRandom string generator: create random strings by length and charset with bulk and strength for passwords and test data, with one-click copy, offline with one-click.
Random Username GeneratorRandom username generator: create available usernames by style and length in Chinese and English with bulk check for signups and gaming, with with one-click copy,.
UPC-A Barcode GeneratorUPC-A barcode generator: enter 11-digit code to calculate check digit and generate barcode for products, with one-click copy and offline.
Username GeneratorUsername generator: create available usernames by style and length in Chinese and English with bulk check for signups, with one-click copy, offline.
ตัวสร้าง UUIDUUID generator: generate multiple random UUID v4 at once with uppercase and hyphen options for database keys and testing, with one-click copy and offline.
เครื่องคิดเลข
Everyday calculators, percentage, BMI and more
AC Size CalculatorEstimate the cooling capacity (BTU/W/HP) needed for a room. Estimates AC tonnage by room area, height and insulation, metric/imperial.
Algeria Irp CalculatorAlgeria Irp Calculator: enter key parameters for quick estimate, built for overseas users.
Argentina Aguinaldo CalculatorArgentina Aguinaldo Calculator: enter key parameters for quick estimate, built for overseas users.
Argentina Ganancias CalculatorArgentina Ganancias Calculator: enter key parameters for quick estimate, built for overseas users.
Aspect Ratio CalculatorAspect ratio calculator: get ratio from width and height with common presets and preview for design and video, with one-click copy, offline.
Australia Super Guarantee CalculatorAustralia Super Guarantee Calculator: enter key parameters for quick estimate, built for overseas users.
Austria Income Tax CalculatorAustria Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Bangladesh Provident Fund CalculatorBangladesh Provident Fund Calculator: enter key parameters for quick estimate, built for overseas users.
Beer Calorie CalculatorBeer calorie calculator: get calories from ABV and volume with multi-brand compare for fitness and diet, with one-click copy, offline.
Belgium Income Tax CalculatorBelgium Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Video Bitrate CalculatorBitrate calculator: get bitrate and file size from resolution, fps and duration with recommended settings for video and live, with one-click copy, offline.
Brazil Fgts CalculatorBrazil Fgts Calculator: enter key parameters for quick estimate, built for overseas users.
Cambodia Salary Tax CalculatorCambodia Salary Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Cost Of Living Index CalculatorCost Of Living Index Calculator: enter key parameters for quick estimate, built for overseas users.
Costa Rica Renta CalculatorCosta Rica Renta Calculator: enter key parameters for quick estimate, built for overseas users.
Cylinder Volume CalculatorCylinder volume: enter radius and height to get volume, surface area and capacity in L/gallons. Supports batch processing, export and one-click copy.
Due Date CalculatorDue date calculator: estimate due date, gestational weeks and checkup schedule by last period or conception with lunar and reminders for pregnancy.
Electricity Cost CalculatorElectricity cost calculator: estimate cost from power and time and reverse from budget for home, with one-click copy and offline.
EV Charging Time CalculatorEV charging calculator: enter capacity, power and price to estimate time, cost and range gain with multi-model comparison for EV planning.
Flooring CalculatorFlooring calculator: enter room and board size to get boards needed, waste and cost with herringbone and straight lay for renovation.
เครื่องคิดเลขเศษส่วนFraction calculator: add, subtract, multiply and divide fractions with simplification, mixed numbers and decimal conversion for math.
France Csg Crds CalculatorFrance Csg Crds Calculator: enter key parameters for quick estimate, built for overseas users.
Fuel Cost CalculatorFuel cost calculator: get one-way and round-trip fuel cost and cost per 100km by distance, consumption and price for road trips.
Gear Ratio CalculatorGear ratio calculator: get ratio, speed and torque by driving and driven teeth for mechanical design and bike gearing. Supports batch processing and one-click copy.
Germany Income Tax CalculatorGermany Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Greece Income Tax CalculatorGreece Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Japan Social Insurance CalculatorJapan Social Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Jordan Income Tax CalculatorJordan Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Kenya Nhif CalculatorKenya Nhif Calculator: enter key parameters for quick estimate, built for overseas users.
Malaysia Epf CalculatorMalaysia Epf Calculator: enter key parameters for quick estimate, built for overseas users.
Morocco Cnss CalculatorMorocco Cnss Calculator: enter key parameters for quick estimate, built for overseas users.
Nigeria Pension CalculatorNigeria Pension Calculator: enter key parameters for quick estimate, built for overseas users.
Nonresident Withholding CalculatorNonresident Withholding Calculator: enter key parameters for quick estimate, built for overseas users.
Number Abbreviation FormatterNumber prefix formatter: format large numbers in K, M or scientific with prefix and locale separators for reports, with one-click copy and offline save.
Ohm's Law CalculatorOhm's law calculator: enter any two of voltage, current, resistance to get third and power with formula for design, with copy, offline and history.
Oman Gratuity CalculatorOman Gratuity Calculator: enter key parameters for quick estimate, built for overseas users.
Overseas Allowance Tax CalculatorOverseas Allowance Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Overseas Remittance Fee CalculatorOverseas Remittance Fee Calculator: enter key parameters for quick estimate, built for overseas users.
Ovulation CalculatorOvulation calculator: estimate ovulation, fertile window and next period from last period and cycle with calendar for planning, private offline and multilingual.
Pakistan Income Tax CalculatorPakistan Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Panama Xiii Mes CalculatorPanama Xiii Mes Calculator: enter key parameters for quick estimate, built for overseas users.
Pet Age CalculatorPet age calculator: convert cat and dog age to human age by species with stage and health tips and breed tweak for pet care, with one-click copy, offline.
Poland Zus CalculatorPoland Zus Calculator: enter key parameters for quick estimate, built for overseas users.
Qatar Income Tax CalculatorQatar Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Rice to Water RatioRice water ratio calculator: recommend ratio and water by rice type and texture with servings and pot fit for cooking, with one-click copy, offline and multilingual.
Rwanda Paye CalculatorRwanda Paye Calculator: enter key parameters for quick estimate, built for overseas users.
เครื่องคิดเลขวิทยาศาสตร์Scientific calculator: support trig, exp, log and factorial with history and formulas for study and engineering, with one-click copy, offline and multilingual.
Screen PPI CalculatorScreen PPI calculator: calculate PPI, pixel density and aspect ratio from resolution and diagonal inches for purchase and design, with one-click copy and offline.
Singapore Cpf CalculatorSingapore Cpf Calculator: enter key parameters for quick estimate, built for overseas users.
Sleep Cycle CalculatorSleep cycle calculator: get best bedtimes from wake-up time using 90-min cycles with count for health, one-click copy and offline.
Garden Soil CalculatorSoil calculator: get volume, weight and bags from length width depth with unit conversion for gardening and construction, with one-click copy, with one-click copy,.
Speed Distance Time CalculatorSpeed distance time calculator: choose target and enter other two to calculate with multiple units for travel and sports, with one-click copy and offline.
Thailand Withholding Tax CalculatorThailand Withholding Tax Calculator: enter key parameters for quick estimate, built for overseas users.
เครื่องคำนวณทิปTip calculator: calculate tip, total and per-person share from bill and tip percent with tax for dining, with one-click copy and offline.
Uk National Insurance CalculatorUk National Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Student Loan Repayment CalculatorUk Student Loan Repayment Calculator: enter key parameters for quick estimate, built for overseas users.
Us Capital Gains Tax CalculatorUs Capital Gains Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Fica Tax CalculatorUs Fica Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Property Tax CalculatorUs Property Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Rental Income Tax CalculatorUs Rental Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Rsu Tax CalculatorUs Rsu Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Unemployment Benefits CalculatorUs Unemployment Benefits Calculator: enter key parameters for quick estimate, built for overseas users.
Venezuela Islr CalculatorVenezuela Islr Calculator: enter key parameters for quick estimate, built for overseas users.
Vietnam Social Insurance CalculatorVietnam Social Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Visa Income Requirement CalculatorVisa Income Requirement Calculator: enter key parameters for quick estimate, built for overseas users.
Weighted Average CalculatorWeighted average calculator: get weighted average from values and weights with formula and contribution for grades and investment, with one-click copy, offline.
Time & Date
Age, date difference and timestamp tools
เครื่องคำนวณอายุOnline age calculator: enter birthdate to get exact age in years/months/days, total days/hours, next birthday countdown, zodiac with Gregorian/lunar support.
Age Difference CalculatorCalculate the difference between two dates in years, months and days. Calculates age gap in years/months/days with leap year support.
นาฬิกาปลุกออนไลน์Online alarm clock tool: set time and ringtone with fullscreen and background alert for daily and work reminders, with one-click copy, offline.
นาฬิกาไบนารีBinary clock tool: show real-time binary clock with multi-format and learning mode for study and geek, with one-click copy, offline.
Birthday CountdownBirthday countdown tool: get countdown and age from birthday with reminders for wishes and anniversaries, with one-click copy, offline.
ตัวนับถอยหลังCountdown timer: set hours/minutes/seconds with fullscreen, sound alerts and loop for exams, workouts and presentations Supports batch processing and one-click copy.
เครื่องคำนวณวันที่บวก/ลบDate add/subtract tool: add or subtract days, weeks and months from a date handling month-end and leap years for scheduling, with one-click copy and offline.
Date CountdownDate countdown: pick target date to get remaining days, hours and minutes with holiday and anniversary reminders for planning.
เครื่องคำนวณผลต่างวันที่Date difference calculator: count days, weeks, months, business and weekend days between dates with auto order handling, one-click copy and offline.
Date Format ConverterDate format converter: enter date to convert to ISO, US, EU, RFC and timestamp with bulk for development and data, with one-click copy and offline.
Date Info CalculatorDate info calculator: enter date to get weekday, leap year, day of year and quarter with holiday marks for calendar and work planning.
Excel Date Serial ConverterExcel date converter: convert between Excel serial numbers and dates 1900 system with bulk and formatting for office data, with one-click copy and offline.
นับถอยหลังเทศกาลFestival countdown tool: cover Chinese lunar and Gregorian festivals automatically counting down to next festival for planning, with one-click copy and offline.
Japan Era ConverterJapan era converter: enter Gregorian year to get Reiwa/Heisei/Showa era for Japan, multilingual.
Leap Year CheckerLeap year checker: check any year with Gregorian rules showing February days and nearby leap years for learning and calendar, with one-click copy and offline.
Chinese Lunar CalendarLunar calendar: convert Gregorian and lunar dates with solar terms, festivals and almanac for traditional holidays. Supports batch processing and one-click copy.
Meeting Time CalculatorMeeting time calculator: enter start and end time to get duration, cost and person-hours with multi-timezone for meeting cost and efficiency.
Meeting Time PlannerMeeting time planner: enter multiple timezones to find common working window with DST for global team scheduling. Supports batch processing and one-click copy.
Moon Phase CalculatorMoon phase calculator: enter date to get moon phase, illumination and next full moon with lunar and astronomy data for stargazing.
นาฬิกาจับเวลาStopwatch timer: support start pause reset and laps with milliseconds and history for sports and lab timing, with one-click copy, offline and multilingual.
Time Ago CalculatorTime ago calculator: calculate interval from a time to now with just now, minutes and days and timestamp conversion, one-click copy and offline.
Time Duration CalculatorTime duration calculator: get duration from start end with multi-segment sum and unit conversion for scheduling, with one-click copy, offline.
เครื่องแปลง TimestampTimestamp converter: convert Unix seconds to dates showing local and UTC with weekday for development, with one-click copy and offline.
เครื่องแปลงเขตเวลาTimezone converter: convert time between source and target zones with multi-city view for meetings and travel, with one-click copy, offline and multilingual.
Timezone DifferenceTimezone diff calculator: get difference between two zones with DST and table for collaboration and travel, with one-click copy, offline.
Week Number CalculatorWeek number calculator: get ISO week number and start end dates from date for scheduling and projects, with one-click copy, offline.
นาฬิกาโลกWorld clock tool: show real-time multi-city times with difference and DST for collaboration and travel, with one-click copy, offline.
ค้นหาราศีZodiac sign finder: get zodiac sign from birthday with traits, fortune and match for fun and daily, with one-click copy, offline and multilingual.
Image
Image processing tools (planned)
Colorful QR Code GeneratorColorful QR code generator: create QR codes with custom colors and size with logo and error correction for branding and events, one-click copy and offline.
Crop Ratio CalculatorImage crop ratio calculator: enter original size and target ratio to get crop dimensions and keep area with preview for social and print, one-click copy and offline.
เครื่องมือบีบอัดและปรับขนาดรูปภาพImage compressor: customize dimensions and quality to compress JPG, PNG and WebP keeping transparency for design, with one-click copy and offline.
Image MergerImage concatenate: stitch multiple images horizontally or vertically with spacing, background and size for long and comparison images.
Image File Size EstimatorImage file size: estimate file size by resolution, bit depth and format with compression reference for upload and storage planning.
Image FlipperImage flipper: flip images horizontally or vertically with rotation and download for composition and fun edits. Supports batch processing and one-click copy.
Image Format ConverterImage format converter: convert between JPG, PNG and WebP with quality settings for design, with one-click copy and offline.
Image ResizerImage resizer: resize by percent or width/height with live preview supporting PNG/JPG/WebP locally for design, with one-click copy and offline.
แปลงรูปภาพเป็น Base64Image to Base64: converts PNG, JPG, WebP images to Data URLs with preview. Supports batch processing, export and one-click copy, offline use.
Instagram Grid SplitterInstagram grid generator: split image into 3×3 grid with spacing and batch download for social layouts. Supports batch processing and one-click copy.
PDF to ImagePDF to image converter: turn each PDF page into PNG, JPG or WebP locally in your browser. Adjust scale, format and page range with live preview and batch download.
SVG to PNG ConverterSVG to PNG tool: batch convert SVG to PNG with size, background and transparency for design and development, with one-click copy, offline.
Network
IP, DNS and network tools (planned)
Data Plan CalculatorData plan calculator: estimate monthly remaining, overage and plan recommendations by daily usage and quota with multi-plan comparison.
MAC Address Generator & ValidatorMAC address generator: generate valid MAC addresses or validate format supporting colon and hyphen for networking, with one-click copy and offline.
Network Speed ConverterNetwork speed converter: convert between Mbps, Gbps, MB/s and GB/s to see broadband download speed for networking and testing, with one-click copy and offline.
Port Service LookupPort lookup tool: enter port number to quickly find common services and protocols like HTTP, SSH, FTP for networking and ops, with one-click copy and offline.
Random IP GeneratorRandom IP generator: bulk generate random IPv4 or IPv6 addresses excluding private ranges with custom count for network testing, with one-click copy and offline.
Math
Base conversion, random numbers and math tools
24 Game Solver24 game: create 4 numbers to make 24 with solutions and hints, multi-difficulty and timer for math and brain training, with one-click copy, offline.
Arithmetic Series CalculatorCalculate the nth term and sum of an arithmetic series. Calculates sum, nth term and average for arithmetic series. Supports batch processing and one-click copy.
Binary CalculatorBinary calculator: support binary add subtract multiply divide and bitwise with decimal view for learning and dev, with one-click copy, offline.
Circle CalculatorCircle calculator: calculate area, circumference and diameter from radius, diameter or circumference for learning, with one-click copy and offline.
Complex Number CalculatorComplex number calculator: add, subtract, multiply and divide complex numbers with magnitude and conjugate, showing a+bi with polar view for math, one-click copy.
Confidence Interval CalculatorConfidence interval calculator: calculate interval from sample mean and size at 90/95/99% for statistics, with one-click copy and offline.
Correlation Coefficient CalculatorCorrelation coefficient: enter two datasets to get Pearson and Spearman with significance, scatter plot and regression for analysis.
Decimal to Fraction CalculatorDecimal to fraction converter: convert decimals to simplest fractions and mixed numbers with repeating detection for math, with one-click copy and offline.
Dilution CalculatorDilution calculator: calculate stock volume and solvent by C1V1=C2V2 with molarity and percent for lab and reagent preparation.
Point Distance CalculatorDistance between points: enter two points to get straight distance, midpoint and slope in 2D and 3D with unit conversion for math and surveying.
Factorial CalculatorFactorial calculator: calculate n! with digit count supporting 0-170 using scientific notation for larger with tips for math, with one-click copy and offline.
Fibonacci Sequence CalculatorFibonacci calculator: generate sequence, get Nth term and sum by count with fast matrix and big integers for math and algorithms.
Fraction to Decimal & Percent CalculatorFraction to decimal converter: convert numerator and denominator to decimal and percentage with repeating detection for math, with one-click copy and offline.
GCD & LCM CalculatorGCD and LCM calculator: enter multiple integers to get GCD and LCM with steps for math study. Supports batch processing and one-click copy.
GCF and LCM CalculatorGCF and LCM calculator: quickly get greatest common factor and least common multiple for multiple integers with fraction simplification for teaching.
Geometric Mean CalculatorGeometric mean calculator: enter values to get geometric mean, product and log average for growth rates and exponential averages.
Harmonic Mean CalculatorHarmonic mean calculator: enter values to get harmonic mean and reciprocal average for rate averaging and finance. Supports batch processing and one-click copy.
Haversine Distance CalculatorHaversine distance calculator: calculate great-circle distance from two coordinates for travel, with one-click copy and offline.
Hex CalculatorHex calculator: add, subtract, multiply and divide hex with decimal conversion and bitwise ops for programming and embedded.
Linear Equation SolverLinear equation solver: solve one-variable and 2-variable linear systems by entering coefficients with steps and graph help for math study.
Linear Regression CalculatorLinear regression: enter two datasets to get regression equation, slope, intercept and R² with scatter plot for stats. Supports batch processing and one-click copy.
Log CalculatorLog calculator: get common, natural and any-base logarithms with change-of-base and steps for math study. Supports batch processing and one-click copy.
Margin of Error CalculatorMargin of error calculator: computes error margin and confidence interval by sample size and confidence. Supports batch processing, export and one-click copy.
Matrix CalculatorMatrix calculator: compute determinant, inverse and transpose for 2x2 and 3x3 matrices with step-by-step results for linear algebra, with one-click copy and offline.
Median & Mode CalculatorMedian and mode calculator: enter values to get median, mode, mean and range for statistics study. Supports batch processing and one-click copy.
Midpoint CalculatorMidpoint calculator: enter two points to get midpoint, distance and slope in 2D and 3D for math and surveying. Supports batch processing and one-click copy.
Modular Arithmetic CalculatorMod calculator: get remainder by dividend and divisor with big integers and negatives for programming and number theory Supports batch processing and one-click copy.
Molar Mass CalculatorMolar mass calculator: enter chemical formula to get molar mass, element percent and mole conversion with brackets and hydrates for chemistry.
Normal Distribution CalculatorNormal distribution calculator: enter mean, std and interval to get PDF, CDF and quantiles with chart for stats and data analysis, with offline copy and history.
Nth Root CalculatorNth root calculator: compute nth roots with power check for fractions and negatives for math and engineering, with one-click copy, offline and history.
Percentage Change CalculatorPercentage change calculator: calculate increase or decrease percent from original and new values for price comparison, with one-click copy and offline.
Percentage Difference CalculatorPercentage difference calculator: get absolute and percentage difference from two numbers with formula for comparison, with one-click copy, offline and history.
Percent Error CalculatorPercentage error calculator: get absolute and percent error from true and measured values with formula for lab validation, with one-click copy, offline and history.
Permutation & Combination CalculatorPermutation and combination calculator: calculate P(n,r) and C(n,r) from total and pick count with formulas for math, with one-click copy and offline.
Regular Polygon Area CalculatorPolygon area calculator: calculate area and perimeter from sides and length with visualization for geometry, with one-click copy and offline.
ตัวตรวจจับจำนวนเฉพาะPrime checker: test if number is prime with factors and steps for large and bulk numbers for math, with one-click copy, offline and multilingual.
Prime Factorization CalculatorPrime factorization: factor integer into primes with tree and exponential form for big numbers, with one-click copy, offline and history.
Prime Number GeneratorPrime number generator: generate primes by range or count with filter, stats and export for research, with one-click copy, offline and multilingual.
Pythagorean Theorem CalculatorPythagorean theorem calculator: enter two sides to get third side with formula, area and angles, right-angle check and diagram for math and with one-click copy,.
Quadratic Equation SolverQuadratic equation solver: calculate discriminant, real roots, vertex and opening direction from coefficients with chart for math, with one-click copy and offline.
Ratio CalculatorRatio calculator: solve missing term from known ratios with cross-multiplication for recipes, scaling and allocation, with one-click copy, offline and multilingual.
Rounding CalculatorRounding calculator: round to chosen decimal places up, down or half-up showing original and result for finance and statistics, with one-click copy and offline.
Sample Size CalculatorSample size calculator: estimate sample size from confidence and margin with correction for surveys, with one-click copy and offline.
Scientific Notation CalculatorScientific notation calculator: add and multiply numbers in scientific notation with plain results for physics, with one-click copy and offline.
Scientific Notation ConverterScientific notation converter: convert between standard and scientific notation with significant figures and exponent for study and research, with with one-click.
Arithmetic & Geometric SequenceSequence calculator: compute nth term and sum from first term and difference/ratio for math, with one-click copy and offline.
3D Shape Volume Calculator3D shape volume calculator: compute volume and surface area of cubes and cylinders for learning, with one-click copy and offline.
Significant Figures CalculatorSignificant figures calculator: count sig figs and round to chosen digits with scientific notation for lab and homework, one-click copy and offline.
Sphere CalculatorSphere calculator: calculate diameter, circumference, volume and surface area from radius for learning, with one-click copy and offline.
Standard Deviation CalculatorStandard deviation calculator: get mean, variance and std dev from data list with visualization for statistics and teaching, with one-click copy, offline.
Triangle Area CalculatorTriangle area calculator: get area from base height, two sides angle or three sides with formula and diagram for math, with one-click copy, offline.
Vector CalculatorVector calculator: support add subtract, dot, cross and magnitude with visualization for math and physics, with one-click copy, offline.
Z-Score CalculatorZ score calculator: get Z score from value, mean and std dev with probability and interpretation for statistics, with one-click copy, offline and multilingual.
Other
Other handy tools
2048 GamePlay 2048 online: merge number tiles with arrow keys or swipe to reach 2048. Supports keyboard and touch, score and best record, offline play.
Activity Idea GeneratorGenerate activity ideas for weekends, dates and family. Generates ideas by scene, people and duration with save and sha Supports batch processing and one-click copy.
Age on PlanetsAge on planets calculator: get age on planets from Earth birthday with next birthday for science and fun, with one-click copy, offline and multilingual.
Alcohol By Volume CalculatorCalculate alcohol by volume (ABV) from original and final gravity. Calculates ABV from OG and FG with calories. Supports batch processing and one-click copy.
Apparent TemperatureCompute heat index or wind chill from temperature and conditions. Calculates wind chill and heat index from temp, humidity and wind.
Aquarium Volume CalculatorAquarium volume calculator: get volume, water and glass thickness from dimensions with unit conversion for fish keeping, with one-click copy, offline.
AWG Wire Gauge CalculatorConvert AWG wire gauge to diameter, area and resistance. Calculates diameter, area, resistance and ampacity by AWG. Supports batch processing and one-click copy.
Battery InfoBattery info detector: check level, charging status, health and estimated runtime in real time, with discharge estimate and reminders. Works in browsers supporting Battery API.
Battery Life CalculatorBattery life calculator: get runtime from capacity and consumption with multi-device compare for purchase and use, with one-click copy, offline.
Blood Alcohol CalculatorBlood alcohol calculator: estimate BAC from weight, drinks and time with legal standard for safety and health, with one-click copy, offline.
Blood Pressure CategoryBlood pressure category tool: get category from systolic and diastolic with advice for health and monitoring, with one-click copy, offline.
Blood Type InheritanceBlood type inheritance calculator: predict child blood types and probability from parents with visualization for science and family, with one-click copy, offline.
Breathing ExerciseBreathing tool: guided diaphragmatic, 4-7-8 and box breathing with custom inhale-hold-exhale. For stress and sleep. Supports one-click copy and offline use.
Caffeine CalculatorCaffeine calculator: estimate caffeine per serving and daily total by drink type and cups vs 400mg safe limit with drink library for coffee and tea lovers.
Caffeine Half-Life CalculatorCaffeine half-life: enter intake and time to simulate remaining caffeine with 5-6h half-life curve and sleep advice for shift work and sleep quality.
Car Depreciation CalculatorCar depreciation: calculate yearly residual and total loss by purchase price, yearly rate or mileage, straight vs accelerated methods for resale and insurance.
Challenge GeneratorChallenge generator: randomly create 30-day fitness, study and habit challenges with difficulty levels, custom themes and check-in tracking for teams.
Charge Time CalculatorCharging time estimator: calculate charge time from capacity, voltage and charger power with fast-charge compare, one-click copy and offline.
China ID Region LookupChina ID region lookup: enter first 6 digits of ID to get province/city/county and area code with batch query and history for verification.
Coffee Ratio CalculatorCoffee water ratio calculator: get water amount and ratio by dose, brew method and strength for pour-over, French press and espresso with Golden Cup guidance.
Commute Cost CalculatorCommute cost calculator: estimate monthly and yearly commute by distance, fuel or fare, days and parking with car vs transit comparison.
เกมเรียงสี่Connect four game: play locally with a friend with 4-in-a-row detection, undo and restart with clean touch-friendly UI for leisure, with one-click copy and offline.
Cooking Time CalculatorCooking time calculator: estimate time by weight, method and heat with flip reminders for meats and vegetables for kitchen timing.
Coordinate Converter (DMS/Decimal)Coordinate converter: convert decimal degrees and DMS, supports WGS84 and GCJ-02 with map preview and batch for surveyi Supports batch processing and one-click copy.
Daily AffirmationDaily affirmation generator: generate positive affirmations by category with favorites for meditation, with one-click copy and offline.
Device InfoDevice info detector: show OS, browser, screen, GPU and network status in real time with copy and share for compatibility debugging.
Dew Point CalculatorDew point calculator: enter temperature and humidity to get dew point, absolute humidity and comfort hints with unit toggle for weather and dehumidification.
Emoji Meaning LookupEmoji meaning lookup: enter or paste an emoji to get name, meaning, category and usage with search and copy for messaging and content creation.
Emoji Slot MachineEmoji slot machine: spin random emoji combos with custom prize pool and win detection for draws and fun games. Supports batch processing and one-click copy.
Expected Value CalculatorExpected value calculator: enter probabilities and payoffs to get expected value, variance and std dev with decision tree for probabilistic decisions.
Friendship CalculatorFriendship calculator: enter two names and years together to get friendship score, compatibility and fun insight for sharing, multilingual.
Gas vs EV Cost ComparisonGas vs EV calculator: compare cost per km and yearly savings by fuel price, electricity price, consumption and efficiency for car buying.
Generator Size CalculatorGenerator size calculator: estimate required kW/kVA by load power and starting factor with redundancy and fuel for emergency and site power.
Gomoku GameOnline Gomoku: play two-player locally or vs AI with win detection and undo for casual play and strategy practice. Supports batch processing and one-click copy.
บันทึกความกตัญญูGratitude journal: record daily gratitude and mood with calendar review and export for mindfulness and emotional management.
Great Circle Distance CalculatorGreat-circle distance: enter two lat/lon to get shortest surface distance and bearing with unit toggle for navigation and aviation.
Habit TrackerHabit tracker: create habits with daily check-ins, streaks, charts and reminders for habit building and discipline. Supports batch processing and one-click copy.
Hangman GameHangman game: random words with letter guessing, win/loss detection and hints for vocabulary and casual play. Supports batch processing and one-click copy.
Horsepower CalculatorHorsepower calculator: calculate horsepower and kilowatts from torque and RPM supporting lb-ft and N·m for automotive and machinery, with one-click copy and offline.
Intermittent Fasting CalculatorIntermittent fasting calculator: get eating window and fasting hours by plan with 16:8 and 5:2 for fat loss and health. Supports batch processing and one-click copy.
ISBN ValidatorISBN validator: enter ISBN-10/13 to validate format and checksum with batch and copy for book management. Supports batch processing and one-click copy.
Joke GeneratorJoke generator: generate jokes by category like puns and programming with count selection, favorites and speech for social and fun, with one-click copy and offline.
ทดสอบคีย์บอร์ดKeyboard test: detect key presses and repeats in real time with keycode display and history for keyboard and game testi Supports batch processing and one-click copy.
LED Resistor CalculatorLED resistor calculator: enter supply voltage, forward voltage and current to get resistor and power. Supports batch export and one-click copy, sharing.
License Plate GeneratorLicense plate generator: randomly create plates for multiple countries with custom prefix and numbers for props and demo data.
Love CalculatorLove calculator: enter two names to get love score and message with shareable poster for fun and social. Supports batch processing and one-click copy.
Magic 8 BallMagic 8-ball: get random yes, no and advice answers with custom question bank for decisions and fun fortune. Supports batch processing and one-click copy.
Martingale CalculatorMartingale calculator: simulate martingale doubling sequence and bankroll needs by initial bet and multiplier for strategy testing.
Maze GeneratorMaze generator: create random mazes by difficulty with size adjustment and printable for puzzles and kids. Supports batch processing and one-click copy.
Random Meal PickerMeal picker: randomly recommend dishes by taste and budget with custom menu and history for indecisive and dining. Supports batch processing and one-click copy.
Meat Temperature GuideMeat temperature guide: get safe doneness temperature and resting time by meat and cut for cooking and food safety. Supports batch processing and one-click copy.
Memory Match GameMemory game: flip cards to match pairs with difficulty levels and timer for kids memory and casual puzzles. Supports batch processing and one-click copy.
ทดสอบไมโครโฟนMicrophone test: shows live volume and spectrum, recording and playback locally without upload. Supports batch processing, export and one-click copy, offline use.
Minesweeper GameMinesweeper: classic minesweeper with difficulty levels, timer and leaderboard for casual puzzles. Supports batch processing and one-click copy.
ทดสอบหน้าจอMonitor test: provide solid, gradient and grid tests to detect dead pixels and color accuracy for display testing. Supports batch processing and one-click copy.
บันทึกอารมณ์Mood tracker: log daily mood and tags with calendar and trend charts for emotional management and mental health. Supports batch processing and one-click copy.
ทดสอบเมาส์Mouse tester: test clicks, double-clicks and scroll with sensitivity and click speed for peripheral and gaming tests. Supports batch processing and one-click copy.
Moving Cost CalculatorMoving cost calculator: estimates labor and transport cost by hours, crew and distance. Supports batch processing, export and one-click copy, sharing.
MPG & Fuel Economy CalculatorMPG calculator: convert fuel consumption between MPG, L/100km and km/L from distance and fuel with cost estimate for drivers, with one-click copy and offline.
Network InfoNetwork info detector: show IP, ISP, speed and latency with copy for network diagnostics and compatibility. Supports batch processing and one-click copy.
NPS CalculatorNPS calculator: enter promoters, passives and detractors to get Net Promoter Score, breakdown and rating with copy for CX and product ops, offline and multilingual.
Number Memory TrainerNumber memory training: memorize flashing digit sequences with levels and accuracy stats for focus training, with one-click copy, offline and history.
Odds ConverterOdds converter: convert decimal, fractional and American odds with implied probability for betting and risk, with one-click copy, offline and history.
Paper Size ConverterPaper size converter: look up A/B/C and US paper sizes in mm and inches or reverse find closest paper for printing and design, with one-click copy and offline.
Parlay CalculatorParlay calculator: combine multiple odds and stake to get total odds and return for sports betting, with one-click copy, offline and history.
Period CalculatorPeriod calculator: predict next period, ovulation and safe window from last period and cycle with calendar for health and planning, private offline and multilingual.
Pool Volume CalculatorPool volume calculator: get volume, water and chemical dose from rectangular or round sizes with units for pool maintenance, with one-click copy, offline.
Power Bank Charging CalculatorPower bank calculator: estimate charges and time from device and bank capacity with efficiency correction for travel, with one-click copy, offline and multilingual.
Random Fact GeneratorRandom fact generator: generate interesting facts by domain with favorites and share for learning, with one-click copy and offline.
Random PickerRandom picker: enter options to randomly pick with weight, dedup and history for decisions and draws, with one-click copy, offline and multilingual.
Random PoemRandom poem generator: generate classic poem lines by dynasty and style with favorites and background for Chinese learning, with one-click copy and offline.
Random Tarot CardRandom tarot draw: draw tarot cards with upright reversed meanings and advice, single or spread for fun and inspiration, with one-click copy, offline with one-click.
Recipe ScalerRecipe scaler: scale ingredients by servings with proportional conversion per line keeping units for cooking and baking, with one-click copy and offline.
Ring Size ConverterRing size converter: convert between US, JP, EU sizes and circumference diameter with chart for shopping, with one-click copy, offline and multilingual.
เป่ายิ้งฉุบRock paper scissors game: play vs computer with win rate and history, animation and sound for fun interaction, with one-click copy, offline and multilingual.
Scrabble Score CalculatorScrabble score calculator: get word score by letter values with double triple bonuses and dictionary check for board games, with one-click copy, offline.
ไม้บรรทัดหน้าจอScreen ruler tool: show draggable ruler based on pixels and DPI with calibration and multi-units for design and frontend, with one-click copy, offline.
Screen TestScreen test tool: provide solid, gradient and dead pixel checks with touch and response tests for device inspection, with one-click copy, offline.
Signature MakerSignature maker: draw with mouse or touch, adjust color and width and download as transparent PNG, one-click copy and offline.
Simon GameSimon game: repeat light and sound sequence with level and high score for memory and focus, with one-click copy, offline and multilingual.
Sleep Debt CalculatorSleep debt calculator: get debt and recovery tips from ideal vs actual sleep with visualization for health management, with one-click copy, offline.
Sliding PuzzleSliding puzzle game: slide to restore number order with moves and time, multi-size and reset for fun and brain training, with one-click copy, offline.
Snake GameSnake game: control snake to eat food with score and high score, multi-difficulty and pause for fun and nostalgia, with one-click copy, offline and multilingual.
Solar Panel CalculatorSolar panel calculator: estimate daily and yearly energy output and savings from panel power and sun hours for solar, with one-click copy and offline.
ทดสอบลำโพงSpeaker test tool: play multi-frequency test tones with left right and bass check for device and audio tuning, with one-click copy, offline and multilingual.
Story GeneratorStory generator: enter keywords and genre to generate story outlines, characters and plots for creation and inspiration, with one-click copy and offline.
Sudoku GeneratorSudoku generator: create sudoku puzzles by difficulty with solution, hints and validation for fun and brain training, with one-click copy, offline.
Sudoku SolverSudoku solver: fill 9x9 grid or load sample to solve instantly with highlighting and hints for enthusiasts, with one-click copy and offline.
Sun Position CalculatorSun position calculator: get altitude and azimuth from lat long and time with visualization for photography and astronomy, with one-click copy, offline.
Tea Steeping GuideTea steeping guide: recommend temperature, time and amount by tea type with taste and vessel fit for daily tea, with one-click copy, offline and multilingual.
เกมเตตริสTetris game: move rotate blocks with score and level, multi-difficulty and pause for fun and nostalgia, with one-click copy, offline and multilingual.
Tic Tac Toe GameTic tac toe game: 2-player or vs computer with win rate and history, multi-difficulty and reset for fun and family, with one-click copy, offline.
Tile CalculatorTile calculator: get quantity and waste from area and tile size with unit conversion and layout for renovation, with one-click copy, offline.
Tire Size CalculatorTire size calculator: get diameter difference, speed error and fuel impact from old and new specs with unit conversion for tuning, with one-click with one-click.
รายการสิ่งที่ต้องทำTo do list tool: create, categorize and prioritize tasks with due dates and completion stats for daily and work efficiency, with one-click copy, offline.
Tournament Bracket GeneratorTournament bracket generator: create brackets from team count with byes and result entry for events, with one-click copy, offline and multilingual.
หอคอยฮานอยTower of Hanoi game: move disks by rules with moves and optimal solution, multi-difficulty and hints for logic training, with one-click copy, offline.
Travel Destination GeneratorTravel destination generator: recommend destinations by budget, season and preference with highlights for travel inspiration, with one-click copy, offline.
Truth or DareTruth or dare generator: create random truth and dare prompts with custom and categories for parties and icebreakers, with one-click copy, offline.
Wallpaper CalculatorWallpaper calculator: get rolls and waste from wall and paper size with pattern match and budget for renovation, with one-click copy, offline and multilingual.
Water Tank Volume CalculatorWater tank calculator: supports cylinder and rectangular tanks to compute volume and capacity. Supports batch processing, export and one-click copy, sharing.
ทดสอบกล้องเว็บWebcam test tool: check camera and microphone with photo and recording for device and meeting test, with one-click copy, offline.
Weight on Other PlanetsWeight on planets calculator: get weight on planets from Earth weight with gravity differences for science learning, with one-click copy, offline.
Whack-a-MoleWhack a mole game: hit moles under time with score and high score, multi-difficulty and sound for fun and reflex, with one-click copy, offline.
วงล้อสุ่มรางวัลWheel spinner tool: create wheel from options and randomly spin with weight and animation for draws and decisions, with one-click copy, offline.
Word Scramble GeneratorWord scramble generator: scramble words to puzzles with answers and hints for teaching and games, with one-click copy, offline.
Wordle GameWordle game: guess a 5-letter word in 6 tries with green/yellow/gray feedback and keyboard support for English learning and fun, with one-click copy and offline.
World Capitals QuizWorld capitals quiz: random questions to test capital knowledge with score and ranking for geography learning, with one-click copy, offline.
Would You RatherWould you rather generator: create random would you rather questions with custom and categories for parties and icebreakers, with one-click copy, with one-click.
Writing Prompt GeneratorWriting prompt generator: create random prompts by genre and topic with save and inspiration for writing and teaching, with one-click copy, offline and multilingual.
Zodiac Compatibility TestZodiac match test: get compatibility score and advice from two signs with trait compare for fun and social, with one-click copy, offline and multilingual.
Developer Tools
Handy utilities for developers and programmers
AES Encrypt / DecryptAES encrypt decrypt tool: support AES encryption and decryption with key and IV for development and security, with one-click copy, offline and multilingual.
Caesar CipherCaesar cipher tool: encrypt and decrypt with any shift 1-25, letters only with case preserved for learning, one-click copy and offline.
Code128 Barcode GeneratorCode128 barcode generator: support ASCII charset with automatic checksum generating standard barcode SVG for products and logistics, with one-click copy and offline.
เครื่องมือจัดรูปแบบ CookieCookie formatter: parses Cookie strings to JSON/table with URL decoding and rebuilds Cookies from JSON. For debugging. Supports batch processing and one-click copy.
CRC32 / Adler-32 ChecksumChecksum calculator: support CRC32 and Adler-32 algorithms outputting hex and decimal results for file and data verification, with one-click copy and offline.
Cron Expression ParserCron parser: parse 5-field cron expressions into readable descriptions and next run times for scheduling, with one-click copy and offline.
CSS Formatter & MinifierCSS formatter and minifier: beautify or minify CSS with one click, removing comments while keeping syntax valid for frontend, with one-click copy and offline.
CSV to Markdown TableCSV to Markdown: converts CSV to Markdown tables with comma/semicolon/Tab and quote handling. Supports batch processing, export and one-click copy, offline use.
Download Time CalculatorDownload time estimator: calculate download time from file size and connection speed for downloads, with one-click copy and offline.
.env Formatter.env formatter: parse KEY=VALUE and align, trim and escape or convert to JSON for config and deployment, with one-click copy and offline.
.gitignore GeneratorGitignore generator: select Node, Python, Java, Go, Vue etc to generate .gitignore with custom merge. Supports batch processing, export and one-click copy.
เครื่องมือบีบอัด/แตกไฟล์ GzipGzip compress tool: compress text to Base64-encoded Gzip or decompress back for transfer and storage, with one-click copy and offline.
HMAC-SHA256 GeneratorHMAC generator: enter message and secret to generate HMAC-SHA256 hex and Base64 signatures. For API signing. Supports batch processing, export and one-click copy.
เข้ารหัส/ถอดรหัส HTML และแปลงเป็น JSHTML escape and decode tool: support special character escape, entity decode and deep numeric encoding for web and security, with one-click copy and offline.
HTML Table GeneratorHTML table generator: paste CSV data to generate HTML table code with header, border and class settings and preview for development, with one-click copy and offline.
HTML to MarkdownHTML to Markdown converter: convert HTML to Markdown with headings and links for docs and writing, with one-click copy and offline.
ค้นหาสถานะ HTTPHTTP status codes reference: look up 1xx-5xx meanings, scenarios and troubleshooting with all common codes for development and ops, with one-click copy and offline.
Interview Question GeneratorInterview question generator: create random interview questions and answers by role and difficulty for job prep and interviewers.
IP Subnet CalculatorIP subnet calculator: calculate network address and broadcast from IPv4 and prefix for networking, with one-click copy and offline.
IPv6 Expand & CompressIPv6 expander: expand compressed addresses to full 8 groups or compress back with validation for networking and ops, with one-click copy and offline.
JavaScript Formatter & MinifierJavaScript formatter: beautify indentation, minify size and safely handle strings and comments with custom indent for development, with one-click copy and offline.
JSON FlattenerJSON flattener: expand nested JSON into dot-path key-value pairs with array indexes and custom separators for config and APIs, with one-click copy and offline.
JSON to CSVJSON to CSV converter: convert JSON array to CSV with custom delimiters and header export for data processing, one-click copy, offline and multilingual.
JSON to TypeScriptJSON to TypeScript: converts JSON to TypeScript interfaces with nested support. For frontend. Supports batch processing, export and one-click copy, offline use.
JSON to YAMLJSON to YAML converter: convert JSON objects to YAML format with nesting and arrays for config and development, with one-click copy and offline.
JSON Tree ViewerJSON tree viewer: render JSON as collapsible color-coded tree with expand and collapse for deep data for APIs, with one-click copy and offline.
JWT Encoder (HS256)JWT encoder: inputs header, payload and secret to generate HS256 JWT token. Supports batch processing, export and one-click copy, offline use.
MAC Address GeneratorMAC address generator: generate random MAC addresses in bulk with multiple formats for networking, with one-click copy and offline.
Markdown Table GeneratorMarkdown table generator: visually edit rows and columns to generate table code with header and alignment for docs and README, with one-click copy and offline.
Markdown to HTMLMarkdown to HTML converter: support headings, bold, italic, links, lists and code blocks with live preview for writing and docs, with one-click copy and offline.
Markdown TOC GeneratorMarkdown TOC generator: extract headings to generate anchored table of contents with nesting for docs, with one-click copy and offline.
เครื่องคำนวณการเข้ารหัส/แฮช MD5MD5 hash tool: compute 32-char hex MD5 digest for UTF-8 text locally for privacy for verification and learning, with one-click copy and offline.
MIME Type LookupMIME lookup: enter file extension or MIME to get Content-Type with common types. Supports batch processing, export and one-click copy, offline use.
Random IP & Port GeneratorRandom IP and port generator: generate random public IPv4 with port and validate IP:port format for network testing, with one-click copy and offline.
SQL FormatterSQL formatter: beautify SQL with keyword uppercasing and indentation for multiple dialects and debugging, one-click copy and offline.
หนีตัวอักษร/เลิกหนีตัวอักษร (JS)String escape tool: convert strings to JavaScript escaped form handling quotes and newlines for coding, with one-click copy and offline.
เข้ารหัส/ถอดรหัส Unicode (ขึ้นต้นด้วย \u)Unicode converter: convert Chinese, Emoji and text to \uXXXX escapes or restore with bulk and large text for development, with one-click copy and offline.
User-Agent ParserUser-Agent parser: paste UA string to identify browser, version, OS and device with highlighting for development and analytics, with one-click copy and offline.
เข้ารหัส/ถอดรหัส UTF-16 (ขึ้นต้นด้วย \x)UTF-16 converter: convert text to \xXXXX hex escapes or decode back supporting bulk and large text for development and debugging, with one-click copy and offline.
XML to JSONXML to JSON converter: convert XML to JSON handling attributes and nesting with validation for development, with one-click copy and offline.
YAML FormatterYAML formatter: parse and reformat YAML with clean indentation and quoting for clear output for config and learning, with one-click copy and offline.
YAML to JSON ConverterYAML to JSON converter: support indent-nested maps and scalars converting to formatted JSON for config, with one-click copy and offline.
Designer Tools
Color, layout and image tools for designers
Avatar Generator (Identicon)Avatar generator: create cartoon avatars from name or random with style, size and background for social and dev, with one-click copy, offline.
Blob Shape MakerBlob maker: customize random blob shapes with color and animation export for design and backgrounds, with one-click copy, offline.
Border Radius GeneratorBorder radius generator: adjust four corners with live preview generating border-radius code for design, with one-click copy and offline.
Box Shadow GeneratorCSS box-shadow generator: adjust horizontal, vertical offset, blur, spread and color opacity with live preview and copy for design, with one-click copy and offline.
Clip Path GeneratorClip-path generator: visually drag polygon, circle and ellipse clipping with live preview and code copy, responsive and animated for front-end layouts.
Color PickerColor picker: pick via HSL sliders or HEX, instantly shows HEX/RGB/HSL with one-click copy. For design and frontend. Supports batch processing and offline use.
Color Scheme GeneratorColor scheme generator: generate complementary and triadic palettes from a base color with HEX output for design and branding, with one-click copy and offline.
CSS Animation GeneratorCSS animation generator: pick animation type, duration and easing to generate keyframes code with live preview for frontend, with one-click copy and offline.
CSS Filter GeneratorCSS filter generator: adjust blur, brightness, contrast and hue with live preview and code copy for image effects. Supports batch processing and one-click copy.
ตัวสร้าง CSS GradientCSS gradient generator: pick colors, angle and linear/radial type with live preview and one-click copy of CSS for frontend and design, offline and multilingual.
CSS Grid GeneratorCSS grid generator: set columns, rows and gap to generate grid layout code with live preview for web and responsive design, with one-click copy and offline.
Easing Curve VisualizerEasing visualizer: visualize CSS easing curves and bezier parameters with drag and code copy for animation and front-en Supports batch processing and one-click copy.
Emoji Copy PasteEmoji copy and paste: browse 500+ emojis by category, search and copy with one click and favorites for chat and social, with one-click copy and offline.
Favicon GeneratorFavicon generator: enter text and colors to generate website icon PNG with multiple sizes and download for site and branding, with one-click copy and offline.
Font Pairing GeneratorFont pairing generator: recommend heading and body font combos by style with preview and Google Fonts links for design and typography.
Font PreviewFont preview tool: enter text and adjust size, weight, line-height and color with live preview and CSS output for typography, with one-click copy and offline.
Font Size ConverterFont size converter: convert between px, pt, em, rem and percent with custom root size and live preview for frontend and typography, with one-click copy and offline.
Glassmorphism GeneratorGlassmorphism generator: adjust blur, opacity, radius and border to preview frosted glass and generate backdrop-filter CSS. Supports batch export and one-click copy.
Gradient Border GeneratorGradient border generator: adjust gradient angle, colors and border width with live preview and CSS copy for cards and buttons.
Gradient Text GeneratorGradient text generator: enter text to create gradient text with direction and multi-colors, live preview and CSS copy for headings.
Image Compression CompareImage compare tool: upload original and compressed images side by side showing size, dimensions and savings for compression tuning, with one-click copy and offline.
Image CropperImage cropper: upload image and crop by coordinates or aspect ratio with preview for avatars, with one-click copy and offline.
Image Filter ToolImage filter: add grayscale, vintage and blur filters to images with live preview and download for social and quick edi Supports batch processing and one-click copy.
Image Rotate & FlipImage rotate and flip tool: rotate 90/180 degrees and flip horizontally or vertically with live preview for quick correction, with one-click copy and offline.
Image to ASCII ArtImage to ASCII: convert images to ASCII art with grayscale, color and size options for geek art and text art. Supports batch processing and one-click copy.
Meme GeneratorMeme generator: upload image and add top and bottom text white with black outline for social media, with one-click copy and offline.
Neon Text GeneratorNeon text generator: enter text to create neon glow with color and glow control and image export for headings and poste Supports batch processing and one-click copy.
Palette from ImagePalette from image: upload an image to extract 5 dominant colors as a palette with one-click HEX copy for designers and branding, with one-click copy and offline.
Palette to CSS VariablesPalette to CSS converter: export color list as CSS variables or Tailwind config for design, with one-click copy and offline.
Pixelate ImageImage pixelation tool: adjust block size to create mosaic and pixel-art with live preview for privacy and design, one-click copy and offline.
Placeholder Image GeneratorPlaceholder image generator: create images by size, background, text and format with bulk and preview for design dev, with one-click copy, offline and multilingual.
เครื่องสร้างสีสุ่มRandom color generator: generate multiple vivid random colors with HEX/RGB/HSL output and palette save for design and inspiration, with one-click copy and offline.
Random Color Palette GeneratorRandom palette generator: create harmonious palettes with HEX RGB and contrast, lock, export and bulk for design branding, with one-click copy, with one-click copy,.
Simple SVG GeneratorSVG generator: pick shapes like circle, rectangle and triangle setting size and color to generate SVG code for design and icons, with one-click copy and offline.
SVG Icon GeneratorSVG icon generator: customize shape, color and size to create SVG icons with export and optimization for design and frontend, with one-click copy, offline.
SVG Pattern GeneratorSVG pattern generator: pick dot, grid and stripe patterns with custom colors for web and design, with one-click copy and offline.
Text Shadow GeneratorText shadow generator: adjust offset, blur and color with live preview and CSS copy, supports multi-layer shadows for headings.
Image Watermark ToolWatermark image tool: add text watermark with position, size and opacity and live preview for branding, with one-click copy and offline.
Wave Divider GeneratorWave divider generator: customize wave shape, color and size to create SVG dividers for web and design, with one-click copy, offline and multilingual.
เครื่องมือครู
Teaching, quiz and classroom tools for educators
Attendance CalculatorAttendance calculator: get attendance rate from required and actual with level and tips for attendance and HR, with one-click copy, offline.
Award Certificate GeneratorAward generator: customize title, name and award to create certificates with print and download for recognition, with one-click copy, offline.
Bingo Card GeneratorBingo generator: create bingo cards from word list with print and online play for teaching and events, with one-click copy, offline.
Month CalendarMonth calendar generator: pick any year and month to generate a calendar with weekdays and holidays, with print and export, one-click copy and offline.
Dictation GeneratorDictation generator: enter word list to create dictation with audio, shuffling and answer sheets, printable and exportable for language teaching.
Fraction SimplifierFraction simplifier: enter numerator and denominator to reduce to lowest terms and convert to mixed numbers and decimals for math, one-click copy and offline.
Grade Percentage & Letter CalculatorGrade calculator: enter assignments, midterm and final weights to get current total and required scores with grade bands for students.
Group GeneratorGroup generator: enter list to randomly group by size or count with dedup and balancing for classes and activities. Supports batch processing and one-click copy.
Hanzi Grid GeneratorHanzi grid generator: enter characters to create tianzig/grid copybooks with stroke order and print for calligraphy practice.
Math Quiz GeneratorMath quiz: generate random arithmetic problems by difficulty with timer and score for student practice and speed. Supports batch processing and one-click copy.
Math Worksheet GeneratorMath worksheet generator: create arithmetic worksheets by grade and type with printable sheets and answers for teachers and parents.
Mental Math PracticeMental math: generate random arithmetic problems with timer and accuracy stats for speed and brain training. Supports batch processing and one-click copy.
ตารางสูตรคูณMultiplication table tool: generate 1x1 to 9x9 tables in standard and complete layouts with copy and print for elementary learning, with one-click copy and offline.
Quiz GeneratorQuiz generator: create multiple-choice quizzes with answers and explanations from topic and type with difficulty and export for teaching, with with one-click copy,.
Random Chinese Name GeneratorRandom Chinese name generator: combine surnames and characters with gender filter for naming and game characters, one-click copy and offline.
Random Name PickerRandom name picker: paste list to randomly pick names with dedup, count and animation for class and draws, with one-click copy, offline and multilingual.
Score Distribution AnalyzerScore distribution calculator: get mean, variance and intervals from score list with visualization for teaching and exam analysis, with one-click copy, offline.
Seat RandomizerSeat randomizer: import names and seats to randomly assign with dedup and export for class and meetings, with one-click copy, offline and multilingual.
Timetable GeneratorTimetable generator: generate weekly timetable from subjects and periods with balanced distribution for teachers, with one-click copy and offline.
Typing Speed TestTyping speed test: practice with Chinese and English texts with live WPM, accuracy and ranking tracking, one-click copy and offline.
Word Search GeneratorWord search generator: create letter grid from word list with solution and print for teaching and family, with one-click copy, offline.
Accounting Tools
Tax, depreciation and invoice tools for accountants
Australia Fbt CalculatorAustralia Fbt Calculator: enter key parameters for quick estimate, built for overseas users.
Bangladesh Income Tax CalculatorBangladesh Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Bank Interest CalculatorBank interest calculator: get simple and compound interest from principal, rate and term with breakdown for savings, with one-click copy, offline.
Brazil 13th Salary CalculatorBrazil 13th Salary Calculator: enter key parameters for quick estimate, built for overseas users.
Break-Even CalculatorBreak-even calculator: calculate break-even units and revenue from fixed cost and price with chart for pricing, with one-click copy and offline.
Chile Impuesto Unico CalculatorChile Impuesto Unico Calculator: enter key parameters for quick estimate, built for overseas users.
China Salary Tax CalculatorChina salary tax calculator: calculate income tax from salary, insurance and deductions using progressive rates for payroll, one-click copy and offline.
Chinese RMB Amount in WordsChinese amount uppercase converter: convert numbers to standard financial uppercase for invoices and contracts, with one-click copy and offline.
Colombia Prima CalculatorColombia Prima Calculator: enter key parameters for quick estimate, built for overseas users.
Denmark Income Tax CalculatorDenmark Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Asset Depreciation CalculatorDepreciation calculator: calculate depreciation with straight-line and sum-of-years methods with yearly schedule for accounting, with one-click copy and offline.
Digital Nomad Tax CalculatorDigital Nomad Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Ecuador Income Tax CalculatorEcuador Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Expat Health Insurance CalculatorExpat Health Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
France Quotient Familial CalculatorFrance Quotient Familial Calculator: enter key parameters for quick estimate, built for overseas users.
Fx Gain Loss CalculatorFx Gain Loss Calculator: enter key parameters for quick estimate, built for overseas users.
Global Payroll Cost CalculatorGlobal Payroll Cost Calculator: enter key parameters for quick estimate, built for overseas users.
GST CalculatorGST calculator India: calculate goods and services tax at 5/12/18/28% adding to net or removing from gross for Indian finance, with one-click copy and offline.
Hungary Szja CalculatorHungary Szja Calculator: enter key parameters for quick estimate, built for overseas users.
India Hra Exemption CalculatorIndia Hra Exemption Calculator: enter key parameters for quick estimate, built for overseas users.
Italy Inps CalculatorItaly Inps Calculator: enter key parameters for quick estimate, built for overseas users.
Japan Bonus Tax CalculatorJapan Bonus Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Japan Unemployment Insurance CalculatorJapan Unemployment Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Kuwait Income Tax CalculatorKuwait Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Laos Income Tax CalculatorLaos Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Late Fee CalculatorLate fee calculator: calculate daily rate, interest and total from payable, annual rate and overdue days for finance and legal, with one-click copy and offline.
Leave Encashment CalculatorLeave encashment calculator: enter daily wage and unused leave days to get encashment amount for HR, multilingual.
Lebanon Income Tax CalculatorLebanon Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Malaysia Pcb CalculatorMalaysia Pcb Calculator: enter key parameters for quick estimate, built for overseas users.
Malaysia Socso CalculatorMalaysia Socso Calculator: enter key parameters for quick estimate, built for overseas users.
Margin & Markup CalculatorMarkup calculator: get selling price, profit and margin by cost and markup for e-commerce pricing and retail. Supports batch processing and one-click copy.
Nigeria Nhis CalculatorNigeria Nhis Calculator: enter key parameters for quick estimate, built for overseas users.
Nigeria Vat CalculatorNigeria Vat Calculator: enter key parameters for quick estimate, built for overseas users.
Overtime Pay CalculatorOvertime pay calculator: enter hourly rate, overtime hours and multiplier to get overtime pay and total for HR, multilingual.
Pakistan Eobi CalculatorPakistan Eobi Calculator: enter key parameters for quick estimate, built for overseas users.
Panama Isr CalculatorPanama Isr Calculator: enter key parameters for quick estimate, built for overseas users.
Payback Period CalculatorPayback period calculator: calculate static payback from initial investment and annual cash flow with comparison for decisions, with one-click copy and offline.
Portugal Tsu CalculatorPortugal Tsu Calculator: enter key parameters for quick estimate, built for overseas users.
ROI CalculatorROI calculator: get ROI and annualized with formula from cost and gain for investment evaluation, with one-click copy, offline and multilingual.
Salary Slip GeneratorSalary slip generator: enter basic, allowances, overtime, deductions and tax to get gross, total deductions and net pay with copy and print for HR, multilingual and offline.
เครื่องคิดเลขภาษีการขาย / ภาษีมูลค่าเพิ่มSales tax and VAT calculator: add tax to net, remove tax from gross or calculate tax only with multi-country rates, one-click copy and offline.
Saudi Qiwa Levy CalculatorSaudi Qiwa Levy Calculator: enter key parameters for quick estimate, built for overseas users.
Singapore Income Tax CalculatorSingapore Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Sweden Income Tax CalculatorSweden Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Tunisia Irpp CalculatorTunisia Irpp Calculator: enter key parameters for quick estimate, built for overseas users.
Turkey Sgk CalculatorTurkey Sgk Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Child Benefit CalculatorUk Child Benefit Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Council Tax CalculatorUk Council Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Crypto Tax CalculatorUs Crypto Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Estate Tax CalculatorUs Estate Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Payroll Overtime Compliance CalculatorUs Payroll Overtime Compliance Calculator: enter key parameters for quick estimate, built for overseas users.
Us Self Employment Tax CalculatorUs Self Employment Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us State Disability Insurance CalculatorUs State Disability Insurance Calculator: enter key parameters for quick estimate, built for overseas users.
Us Stock Option Tax CalculatorUs Stock Option Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Tip Allocation CalculatorUs Tip Allocation Calculator: enter key parameters for quick estimate, built for overseas users.
VAT CalculatorVAT calculator: convert between gross and net prices with 0-25% rate shortcuts keeping amounts consistent, with one-click copy and offline.
Zambia Paye CalculatorZambia Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Student Tools
Study, exam and productivity tools for students
CGPA to Percentage CalculatorCGPA to percentage: enter CGPA and scale to get percentage and grade with 9.5 or 10 multiplier for Indian students, multilingual.
Citation GeneratorCitation generator: create APA, MLA, Chicago and GB/T 7714 references for books, journals and web with DOI auto-fill and batch export for papers.
นับถอยหลังสอบExam countdown: set exam date to show remaining days, hours and study plan with multi-subject and reminders for exam pr Supports batch processing and one-click copy.
Final Grade Needed CalculatorFinal grade calculator: enter current scores, weights and target to get required final exam score and grade for student Supports batch processing and one-click copy.
GPA CalculatorGPA calculator: calculate weighted GPA from grades and credits supporting 4.0/5.0 scales with conversion for students, with one-click copy and offline.
GPA Scale ConverterGPA scale converter: convert between 4.0/5.0 and percentage with credit-weighted GPA and multi-term cumulative for study abroad.
Pomodoro TimerPomodoro timer: focus 25 minutes and break 5 minutes with auto switch and alerts supporting custom durations for study and work, with one-click copy and offline.
Review Schedule GeneratorReview schedule generator: generate review dates on days 1,2,4,7,15,30 using Ebbinghaus curve with reminders for study, with one-click copy and offline.
Statistics CalculatorStatistics calculator: compute sum, mean, median, mode, variance and deviation with chart for analysis, with one-click copy and offline.
Study Time CalculatorStudy time calculator: allocate daily study time by subject and goal with progress tracking for exam prep, with one-click copy, offline and multilingual.
เครื่องมือนับคำWord count tool: count characters, words and paragraphs with reading time and keywords for writing and editing, with one-click copy, offline.
E-commerce Tools
Promotion, conversion and pricing tools for e-commerce
Average Order Value CalculatorAOV calculator: get average order value from total sales and orders with trend for e-commerce and operations, with one-click copy, offline.
Commission CalculatorCommission calculator: get commission by sales, tiered rates and fixed bonus with tier comparison and net pay for sales incentives.
Conversion Rate CalculatorConversion rate calculator: compute CTR, conversion rate and AOV from impressions and clicks for e-commerce, with one-click copy and offline.
เครื่องคำนวณส่วนลดDiscount calculator: calculate sale price from original or reverse to original quickly showing savings and final price for shopping, with one-click copy and offline.
Funnel Conversion CalculatorFunnel calculator: enter stage counts to get conversion rates, drop-off and overall conversion with funnel chart for ops and sales.
Gross Margin & Markup CalculatorGross margin calculator: enter revenue and cost to get gross profit, margin and markup with multi-product comparison for pricing.
เครื่องคำนวณเปอร์เซ็นต์Percentage calculator: four modes for share, value, change and reverse total with live formula for daily use, with one-click copy, offline and history.
Promo Discount CalculatorPromo discount calculator: calculate final price and discount ratio for spend X save Y for e-commerce, with one-click copy and offline.
Quotation GeneratorQuotation generator: fill client, line items, tax and validity to get a professional quotation text with copy and print for sales and e-commerce, multilingual.
Return Rate CalculatorReturn rate calculator: get total and annualized return from start, end values and time with multiple cash flows for investment evaluation, with with one-click.
Unit Price CompareUnit price compare calculator: get unit price from price and quantity with cost comparison and savings for shopping, with one-click copy, offline.
Logistics Tools
Volumetric weight and container loading tools for logistics
Container Loading CalculatorContainer loader: enter carton size and weight to estimate CBM and loads for 20GP/40GP/40HQ. For trade. Supports batch processing, export and one-click copy.
CBM CalculatorCBM calculator: calculate single and total volume from dimensions and quantity for logistics, with one-click copy and offline.
Estimated Delivery Date CalculatorDelivery date calculator: estimate arrival from order date and shipping days excluding weekends for e-commerce, with one-click copy and offline.
Express Freight CalculatorExpress freight calculator: calculate delivery cost from first and additional weight with custom prices for e-commerce, with one-click copy and offline.
Inventory Turnover CalculatorInventory turnover calculator: calculate turnover ratio and days from COGS and inventory with tips for warehouse and finance, with one-click copy and offline.
Pallet Loading CalculatorPallet calculator: get per-layer and per-pallet count from box and pallet size with stacking for logistics, with one-click copy, offline and history.
Shipping Cost CalculatorShipping cost calculator: enter weight, distance and rate to get shipping cost for cross-border e-commerce and logistics, multilingual.
Volumetric Weight CalculatorVolumetric weight: enters dimensions and weight to compute dimensional and billable weight. Supports batch processing, export and one-click copy, offline use.
Fitness Tools
Training, strength and fat-burn tools for fitness
Activity Calories CalculatorEstimate calories burned for common activities using MET values. Estimates calories by activity, duration and weight for fat loss.
เครื่องคำนวณ BMIBMI calculator: get BMI, BMI Prime, category and healthy range in metric or imperial with gauge for fitness, with one-click copy, offline and multilingual.
เครื่องคิดเลขอัตราการเผาผลาญพื้นฐาน (BMR)เครื่องคำนวณ BMR ออนไลน์รองรับหน่วยเมตริก/อังกฤษ คำนวณ BMR, TDEE, BMI และคำแนะนำลดไขมันหรือเพิ่มกล้ามเนื้อด้วยสูตร Mifflin-St Jeor และ Harris-Benedict
Body Fat CalculatorBody fat calculator: based on US Navy and BMI formulas, enter height, weight and waist/hip to estimate body fat %, fat mass and health category.
Body Surface Area CalculatorBSA calculator: calculate body surface area from height and weight using Mosteller formula for medical, with one-click copy and offline.
Daily Calorie CalculatorDaily calorie calculator: estimate maintenance calories from gender, age, height, weight and activity with tips for fitness, one-click copy and offline.
Calorie Deficit CalculatorCalorie deficit calculator: enter maintenance calories, deficit and weight to estimate daily intake, weekly fat loss rate and time to goal with macro split for dieting.
Cycling Calories CalculatorCycling calories: estimates calories, power and fat burn by weight, time, speed and intensity with metric/imperial. Supports batch processing and one-click copy.
Fat Burn Zone CalculatorFat burn zone: get max heart rate and fat burn/cardio zones by age and resting HR with charts and training tips for fat loss and cardio.
Heart Rate Reserve CalculatorHeart rate reserve: get reserve range and target HR by max and resting HR with Karvonen formula for training intensity. Supports batch processing and one-click copy.
Heart Rate ZonesHeart rate zones: divide into five zones by age and resting HR with charts and training tips for cardio and fat burn. Supports batch processing and one-click copy.
Ideal Weight CalculatorIdeal weight calculator: uses Devine, Robinson, Miller formulas and BMI to compute ideal range. Supports batch processing, export and one-click copy, sharing.
Interval TimerInterval timer: set high-intensity and rest cycles with sound alerts and fullscreen for HIIT and workouts. Supports batch processing and one-click copy.
Macro CalculatorMacro calculator: get protein, carbs and fat grams and calorie split by goal and weight for fitness and nutrition. Supports batch processing and one-click copy.
One-Rep Max CalculatorOne rep max: estimates max lift and training zones from weight and reps via Epley. For fitness. Supports batch processing, export and one-click copy, sharing.
Protein Intake CalculatorProtein intake calculator: get daily protein need and portions from weight, goal and activity for muscle and fat loss, with one-click copy, offline.
Race Time PredictorRace time predictor: predict 5K, 10K, half and full marathon times from a recent result using Riegel formula, one-click copy and offline.
Running Calories CalculatorRunning calories calculator: get calories from weight, pace and duration with heart zones for multiple sports for fitness planning, with one-click with one-click.
Running Pace CalculatorRunning pace calculator: get pace, speed and splits from distance and time for marathon and intervals for race prep, with one-click copy, offline and multilingual.
Sports Calories CalculatorSports calories calculator: get calories from sport type, weight and duration with multi-sport compare for fitness, with one-click copy, offline and multilingual.
Steps to km & CaloriesSteps to km calculator: get distance from steps and stride with calories and goal tracking for fitness and daily steps, with one-click copy, offline.
Swim Pace CalculatorSwim pace calculator: get pace, speed and splits from distance and time for pool and open water for swim training, with one-click copy, offline and multilingual.
TDEE CalculatorTDEE calculator: estimate total daily energy expenditure and BMI from age, gender, weight, height and activity for fitness and diet, with one-click copy and offline.
Treadmill Pace ConverterTreadmill pace converter: convert between speed km/h and pace min/km with calorie reference for training, one-click copy and offline.
VO2max EstimatorVO2max estimator: estimate VO2max from 12-minute run distance and gender using Cooper formula with rating for running and fitness, with one-click copy and offline.
Waist-Hip Ratio CalculatorWaist hip ratio calculator: get ratio from waist and hip with health risk assessment for fitness, with one-click copy, offline and multilingual.
Daily Water Intake CalculatorWater intake calculator: get daily water need from weight, activity and climate with reminders for health, with one-click copy, offline and multilingual.
บันทึกการดื่มน้ำWater tracker: log daily water intake with goal rate and trends, target and reminders for healthy habits, with one-click copy, offline.
Workout GeneratorWorkout generator: create training plans by goal, equipment and time with muscle split and intensity for home and gym. Supports batch processing and one-click copy.
Engineering Tools
Slope and material volume tools for construction
Brick CalculatorBrick calculator: enter wall size, openings and brick specs to estimate bricks, mortar and 5% waste. For masonry. Supports batch processing and one-click copy.
Concrete Volume CalculatorConcrete volume calculator: calculate concrete volume and estimate cement and sand per ratio for construction, with one-click copy and offline.
Paint CalculatorPaint calculator: get litres and cans from area, coats and coverage with doors deduction for renovation, with one-click copy, offline and history.
Pipe Flow CalculatorPipe flow calculator: convert pipe diameter, velocity and flow rate between m3/h and L/min for plumbing and HVAC, with one-click copy and offline.
Rebar Weight CalculatorRebar weight calculator: get single and total weight from diameter, length and count with unit conversion for construction budgeting, with one-click with one-click.
Roof Pitch CalculatorRoof pitch calculator: get pitch, angle and material from rise and span with unit switch for building and renovation, with one-click copy, offline and multilingual.
Slope CalculatorSlope calculator: get slope, angle and percent from two points or rise run with visualization for math and engineering, with one-click copy, offline with one-click.
Stair CalculatorStair calculator: get riser, tread and angle from height and steps with code compliance for renovation and architecture, with one-click copy, offline with one-click.
Career Tools
Salary, attendance and career tools for professionals
Bolivia Rciva CalculatorBolivia Rciva Calculator: enter key parameters for quick estimate, built for overseas users.
Year-End Bonus Tax CalculatorBonus tax calculator: get tax and take-home from bonus and salary with method comparison for payroll and tax planning, with one-click copy, offline.
Year-End Bonus Tax ComparatorBonus tax comparator: calculates separate vs combined annual tax, shows net pay and recommends cheaper filing. Supports batch processing and one-click copy.
Chile Gratificacion CalculatorChile Gratificacion Calculator: enter key parameters for quick estimate, built for overseas users.
Colombia Retencion CalculatorColombia Retencion Calculator: enter key parameters for quick estimate, built for overseas users.
Ethiopia Income Tax CalculatorEthiopia Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Expat Housing Allowance CalculatorExpat Housing Allowance Calculator: enter key parameters for quick estimate, built for overseas users.
Expat Social Security Totalization CalculatorExpat Social Security Totalization Calculator: enter key parameters for quick estimate, built for overseas users.
Freelance Rate CalculatorFreelance rate: get hourly and project rate by target annual income, hours and expenses with tax and profit markup for quoting.
Ghana Paye CalculatorGhana Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Hongkong Mpf CalculatorHongkong Mpf Calculator: enter key parameters for quick estimate, built for overseas users.
India Gratuity CalculatorIndia Gratuity Calculator: enter key parameters for quick estimate, built for overseas users.
Indonesia Bpjs CalculatorIndonesia Bpjs Calculator: enter key parameters for quick estimate, built for overseas users.
Indonesia Pph21 CalculatorIndonesia Pph21 Calculator: enter key parameters for quick estimate, built for overseas users.
International Wire Fee CalculatorInternational Wire Fee Calculator: enter key parameters for quick estimate, built for overseas users.
Ireland Prsi CalculatorIreland Prsi Calculator: enter key parameters for quick estimate, built for overseas users.
Israel Income Tax CalculatorIsrael Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Italy Irpef CalculatorItaly Irpef Calculator: enter key parameters for quick estimate, built for overseas users.
Japan Residence Tax CalculatorJapan Residence Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Jordan Social Security CalculatorJordan Social Security Calculator: enter key parameters for quick estimate, built for overseas users.
Korea National Pension CalculatorKorea National Pension Calculator: enter key parameters for quick estimate, built for overseas users.
Korea Severance Pay CalculatorKorea Severance Pay Calculator: enter key parameters for quick estimate, built for overseas users.
Mexico Isr CalculatorMexico Isr Calculator: enter key parameters for quick estimate, built for overseas users.
Mongolia Income Tax CalculatorMongolia Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Newzealand Paye CalculatorNewzealand Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Norway Income Tax CalculatorNorway Income Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Oman Vat CalculatorOman Vat Calculator: enter key parameters for quick estimate, built for overseas users.
Overseas Education Allowance CalculatorOverseas Education Allowance Calculator: enter key parameters for quick estimate, built for overseas users.
Poland Pit CalculatorPoland Pit Calculator: enter key parameters for quick estimate, built for overseas users.
นับถอยหลังเกษียณRetirement countdown: supports statutory and custom ages, calculates remaining days and progress. Supports batch processing, export and one-click copy, sharing.
Reverse Salary Calculator (Net to Gross)Reverse salary calculator: estimate gross salary and tax from net pay using Chinese tax table with comparison for negotiation, with one-click copy and offline.
Salary CalculatorSalary converter: convert between annual, monthly, biweekly, weekly and hourly salaries for job hunting, with one-click copy and offline.
Salary Converter (Annual/Hourly)Salary converter: convert between hourly, daily, weekly and monthly salaries by hours and weeks for job comparison, with one-click copy and offline.
Salary Raise CalculatorSalary raise calculator: get new salary, difference and annual growth from current salary and percent with gross net view for negotiation, with with one-click copy,.
Saudi Vat CalculatorSaudi Vat Calculator: enter key parameters for quick estimate, built for overseas users.
Social Insurance CalculatorSocial insurance calculator: calculate pension, medical, unemployment, housing fund and tax from salary by city, one-click copy and offline.
South Africa Sdl CalculatorSouth Africa Sdl Calculator: enter key parameters for quick estimate, built for overseas users.
South Africa Uif CalculatorSouth Africa Uif Calculator: enter key parameters for quick estimate, built for overseas users.
Spain Seguridad Social CalculatorSpain Seguridad Social Calculator: enter key parameters for quick estimate, built for overseas users.
Sri Lanka Epf Etf CalculatorSri Lanka Epf Etf Calculator: enter key parameters for quick estimate, built for overseas users.
Sri Lanka Paye CalculatorSri Lanka Paye Calculator: enter key parameters for quick estimate, built for overseas users.
Time Card CalculatorTime card calculator: get hours, overtime and pay from clock in out with multi-shifts for attendance and payroll, with one-click copy, offline.
Uae Gratuity CalculatorUae Gratuity Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Capital Gains CalculatorUk Capital Gains Calculator: enter key parameters for quick estimate, built for overseas users.
Uk Pension Contribution CalculatorUk Pension Contribution Calculator: enter key parameters for quick estimate, built for overseas users.
Us Amt CalculatorUs Amt Calculator: enter key parameters for quick estimate, built for overseas users.
Us Child Tax Credit CalculatorUs Child Tax Credit Calculator: enter key parameters for quick estimate, built for overseas users.
Us Commuter Benefits CalculatorUs Commuter Benefits Calculator: enter key parameters for quick estimate, built for overseas users.
Us Early Withdrawal Penalty CalculatorUs Early Withdrawal Penalty Calculator: enter key parameters for quick estimate, built for overseas users.
Us Family Leave Tax CalculatorUs Family Leave Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us Freelancer Tax CalculatorUs Freelancer Tax Calculator: enter key parameters for quick estimate, built for overseas users.
Us W4 Withholding EstimatorUs W4 Withholding Estimator: enter key parameters for quick estimate, built for overseas users.
Work Hours CalculatorWork hours calculator: get hours and pay from work and break times with overtime for attendance and payroll, with one-click copy, offline.
Workday CounterWorkday counter: count total days, weekdays and weekends between dates with holiday exclusion for attendance, one-click copy and offline.
Content Creator Tools
Platform sizes, title and hashtag tools for content creators
Hashtag GeneratorHashtag generator: enter keywords to generate viral hashtags for Xiaohongshu and Instagram. Supports batch processing, export and one-click copy with sharing.
Meta Tag GeneratorMeta tag generator: creates title, description, keywords and Open Graph tags for SEO with preview. Supports batch processing, export and one-click copy, offline use.
OG Image GeneratorOG image generator: enter title and subtitle to generate 1200x630 social share image and download as PNG for social media, with one-click copy and offline.
Platform Image Size GuidePlatform image size lookup: covers Douyin, Kuaishou, Xiaohongshu, YouTube specs. Supports batch processing, export and one-click multilingual copy.
Script Reading Time CalculatorScript reading time calculator: get speaking time from word count and speed with paragraph estimate for hosting and dubbing, with one-click copy, offline.
Social Card PreviewSocial card preview: simulate WeChat, Facebook and Twitter share card effects for marketing, with one-click copy and offline.
Social Tag ExtractorSocial tag extractor: extract hashtags and mentions from text with frequency and dedup for social media and content, with one-click copy, offline and multilingual.
SRT to VTT ConverterSRT to VTT converter: upload SRT to get WebVTT with timestamp and style handling for video captions and web playback. Supports batch processing and one-click copy.
Subtitle Timing CalculatorSubtitle timing tool: enter total duration and line count to evenly split times and generate SRT codes for video subtitling, with one-click copy and offline.
Title OptimizerTitle optimizer: check title length against platform limits like Douyin and suggest improvements for clicks and exposure, with one-click copy and offline.
Video Frame CalculatorVideo frame calculator: get total frames and duration from time and fps with bitrate estimate for editing, with one-click copy, offline.
Video Playback Time CalculatorVideo playback calculator: calculate watch time from duration and speed or find required speed for courses, one-click copy and offline.
Video Title GeneratorVideo title generator: generate multiple catchy titles from keywords and style for TikTok, Kuaishou and YouTube creation, with one-click copy and offline.
Parenting Tools
Baby age and vaccination tools for parents
Baby Age CalculatorBaby age calculator: get months, days and milestones from birth date with growth chart for parenting, with one-click copy, offline and multilingual.
Child Height PredictorChild height prediction: predict adult height range from parents height with genetic formula, gender and bone age correction plus growth curve for pediatrics.
Gestational Age CalculatorGestational age calculator: get weeks, days and due date by last period or ultrasound with fetal development reference for prenatal care.
Pregnancy Weight Gain CalculatorPregnancy weight gain guide: get total and weekly gain ranges from pre-pregnancy BMI for maternal health, one-click copy and offline.
Vaccination ScheduleVaccine schedule tool: reference for 0-6 year immunization including hepatitis B and polio months for parents, with one-click copy and offline.
Photography Tools
Depth-of-field and exposure tools for photographers
Aperture Stop ComparatorCompare two f-stops: stops apart and light ratio - for exposure and depth of field. Supports batch processing and one-click copy, offline use.
Crop Factor CalculatorCrop factor calculator: calculate crop factor and 35mm equivalent from sensor size for photography, with one-click copy and offline.
Depth of Field CalculatorDepth of field calculator: enter focal length, aperture, distance and sensor to get DoF, hyperfocal and CoC for photography and lens choice.
Exposure CalculatorExposure calculator: calculate EV and equivalent combinations from aperture, shutter and ISO for photography, with one-click copy and offline.
Hyperfocal Distance CalculatorHyperfocal distance: get hyperfocal and DoF range by focal length, aperture and sensor for landscape and panorama focus Supports batch processing and one-click copy.
Megapixel CalculatorMegapixel calculator: get total pixels and megapixels by resolution with print size and file size for photography and design.
ND Filter Exposure CalculatorND filter calculator: calculate exposure time with ND filter from base shutter and stops with settings for long exposure, one-click copy and offline.
Photo Print Cost CalculatorPhoto print cost calculator: calculate total cost and area from photo size, quantity and unit price with comparison for printing, with one-click copy and offline.
Print Size CalculatorPrint size calculator: get print size from pixels and DPI with paper mapping for photo, poster and canvas, with one-click copy, offline and multilingual.
Language Tools
Vocabulary and text tools for language learners
English Abbreviation LookupAbbreviation lookup tool: enter abbreviation to get full form and meaning with multi-domain database for study and work, with one-click copy, offline with one-click.
Anagram SolverAnagram solver: find all anagrams from letters sorted by length and frequency for games and learning, with one-click copy, offline.
เครื่องแปลงตัวอักษรเล็ก/ใหญ่Text case converter: convert between 11 cases like upper, lower, title and camel with character count for writing and coding, with one-click copy and offline.
Flashcard GeneratorFlashcard generator: enter word and definition pairs to generate Anki tab-separated text with preview table for language learning, with one-click copy and offline.
Number to Hindi WordsHindi number to words converter: convert numbers to Hindi words Devanagari using Indian system for documents, with one-click copy and offline.
Irregular Verbs ReferenceIrregular verbs: enter verb to get past and past participle with pronunciation and examples for English learning. Supports batch processing and one-click copy.
เครื่องแปลงรหัสมอร์สMorse code translator: convert between text and Morse with audio playback and copy for learning and fun communication. Supports batch processing and one-click copy.
Number to WordsNumber to words: converts numbers to English words (e.g., 123 → one hundred twenty-three). Supports batch processing, export and one-click copy, offline use.
English Plural Form ConverterPlural form converter: enter singular to get plurals with irregular forms and examples in bulk for learning, with one-click copy, offline.
Random Word GeneratorRandom word generator: create words by length, initial and part of speech with count and dedup for writing and testing, with one-click copy, offline with one-click.
Spelling PracticeSpelling practice: random words by difficulty with audio, typing and instant correction, wordbook and progress for vocabulary and exams.
Syllable CounterSyllable counter: count syllables in text by word and sentence with multi-language and bulk for writing and poetry, with one-click copy, offline and multilingual.
แปลงข้อความเป็นเสียงพูดText to speech tool: enter text and pick language and voice to read aloud adjusting speed and pitch, with one-click copy and offline.
Traditional / Simplified ConverterTraditional/Simplified converter: convert between Simplified and Traditional Chinese keeping punctuation for writing, with one-click copy and offline.
Word Frequency CounterWord frequency counter: count occurrences of each word in text sorted by frequency ignoring case and min length for SEO and writing, with one-click copy and offline.
Musician Tools
Tempo, notes and transposition tools for musicians
Tap Tempo (BPM)BPM tap tempo: tap or press space to the beat for live BPM, average and stability with metronome. For music. Supports batch export, one-click copy and offline use.
BPM to ms Delay CalculatorBPM to milliseconds converter: calculate delay time from tempo and note value for music production, with one-click copy and offline.
Chord FinderChord finder: enter notes or fret position to identify chord name, tones and inversions with guitar, ukulele and piano diagrams for composition.
Chord Progression GeneratorChord progression generator: create pop, jazz and classical progressions by key and mood with playback, transpose and MIDI export for songwriting.
Guitar Tuning ReferenceGuitar tuner: detect pitch via microphone with standard and alternate tunings and chord charts for guitar and ukulele. Supports batch processing and one-click copy.
เครื่องนับจังหวะMetronome tool: adjustable tempo 40-240 BPM and beats per bar with accented first beat and sound and visual pulse for practice, with one-click copy and offline.
Music Interval CalculatorMusic interval calculator: get interval name, semitones and frequency ratio by two notes for music theory and compositi Supports batch processing and one-click copy.
Music Note FrequencyMusic note frequencies: look up note frequencies C0-B8 and MIDI numbers based on A4=440Hz with reference for music, with one-click copy and offline.
Note TransposerNote transposer: enter original and target keys to transpose notes and fingerings for guitar, piano and jianpu for arranging, with copy, offline and history.
Scale FinderScale finder: generate scale notes, fretboard and MIDI preview from mode and root with guitar and keyboard for composing, with one-click copy, with one-click copy,.
Legal Tools
Overtime and annual-leave tools for legal/work contexts
Annual Leave CalculatorAnnual leave calculator: get leave days from hire date and seniority with legal standard for HR and employees, with one-click copy, offline.
Contract Duration CalculatorContract duration calculator: enter start/end dates to get days, months and years, with business days and renewal reminders for legal and HR.
Court Fee CalculatorCourt fee calculator (China): calculate filing and preservation fees by claim amount with bracket table for legal budgeting.
Overtime Pay CalculatorOvertime pay: computes pay at 1.5x weekday, 2x weekend and 3x holiday rates. For HR. Supports batch processing, export and one-click copy, sharing.
Severance Pay CalculatorSeverance pay calculator: estimate compensation from monthly salary and years per one month per year for resignation and labor law, with one-click copy and offline.
Gamer Tools
Speed, reaction and win-rate tools for gamers
ฝึกเล็งAim trainer game: generate random targets with hit rate and reaction time, multi-difficulty and ranking for gaming and reflex, with one-click copy, offline.
Click Speed Test (CPS)Click speed test: click as many times as possible in 5 or 10 seconds with live CPS and total count and ranking for gaming, with one-click copy and offline.
Dice Probability CalculatorDice probability calculator: get sums, ranges and specific combos by dice count and sides with charts and simulation for board games and probability.
Gacha Probability CalculatorGacha probability calculator: calculate probability of at least one hit and expected pulls for gacha planning, with one-click copy and offline.
Reaction Time TestReaction time test: wait for green and click, 5 rounds average with ranking for attention training and mini game, with one-click copy and offline.
Werewolf Role GuideWerewolf guide: introduce roles, skills and gameplay with strategy tips for beginners and hosts, with one-click copy, offline and multilingual.
Werewolf Role DistributorWerewolf roles assigner: randomly assign werewolf, villager and special roles by count with custom for parties, with one-click copy, offline.
Win Rate CalculatorWin percentage calculator: calculate win rate, total games and win streak needed for target with chart for gaming and esports, with one-click copy and offline.
เครื่องมือล่าสุด
Algeria Irp CalculatorAlgeria Irp Calculator: enter key parameters for quick estimate, built for overseas users.
Argentina Aguinaldo CalculatorArgentina Aguinaldo Calculator: enter key parameters for quick estimate, built for overseas users.
Argentina Ganancias CalculatorArgentina Ganancias Calculator: enter key parameters for quick estimate, built for overseas users.
Australia Fbt CalculatorAustralia Fbt Calculator: enter key parameters for quick estimate, built for overseas users.
Australia Medicare Levy CalculatorAustralia Medicare Levy Calculator: enter key parameters for quick estimate, built for overseas users.
Australia Payg Withholding CalculatorAustralia Payg Withholding Calculator: enter key parameters for quick estimate, built for overseas users.
Australia Super CalculatorAustralia super calculator: enter salary to compute 12% Super Guarantee for Australia.
Australia Super Guarantee CalculatorAustralia Super Guarantee Calculator: enter key parameters for quick estimate, built for overseas users.