ToolForge

ToolForge

বিনামূল্যে অনলাইন টুল ডিরেক্টরি, প্রতিদিন আপডেট হয়

Tools by Profession

Developers, designers, teachers, accountants, students, e-commerce, logistics, fitness, engineering, career... find your toolbox

💻 Developer Tools · 42🎨 Designer Tools · 39📚 Teacher Tools · 21🧾 Accounting Tools · 57🎓 Student Tools · 11🛒 E-commerce Tools · 11🚚 Logistics Tools · 9💪 Fitness Tools · 29🏗️ Engineering Tools · 14💼 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

Color Contrast CheckerColor 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. Color MixerColor 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. Hex to RGB/HSL Color ConverterHEX 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 Pair GeneratorRandom accessible color: generate random foreground background pairs meeting WCAG contrast with score, lock and bulk for design accessibility, with with one-click. RGB to Hex ConverterRGB 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 Colors 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. Base64 Encode/DecodeOnline 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. Hex Encode/Decode & Hex Dump ViewerHex converter: support text and hex conversion with offset and ASCII hex dump viewer for development and debugging, with one-click copy and offline. JWT DecoderJWT decoder: decodes JWT header and payload via Base64Url to JSON locally. For auth debugging. Supports batch processing, export and one-click copy, offline use. SHA Hash GeneratorSHA hash calculator: compute SHA-1, SHA-256 and SHA-512 hashes for file verification and learning, with one-click copy and offline. URL Encode/DecodeURL encode decode tool: support URL encoding and decoding with special characters and bulk for development, with one-click copy, offline. URL Parameters ParserURL 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.

ডেটা রূপান্তর

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. Byte & Storage ConverterByte 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. Currency ConverterCurrency 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. ডেটা রূপান্তর · 25 টি টুল →

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. Finance · 197 টি টুল →

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. Text · 37 টি টুল →

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. Developer · 66 টি টুল →

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. Coin FlipCoin flip: simulate fair coin toss, multiple flips and stats with custom heads/tails labels and history for draws and probability demos. Dice RollerDice 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. Generators · 38 টি টুল →

Calculators

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. Calculators · 66 টি টুল →

Time & Date

Age, date difference and timestamp tools

Age CalculatorOnline 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. Online Alarm ClockOnline alarm clock tool: set time and ringtone with fullscreen and background alert for daily and work reminders, with one-click copy, offline. Binary ClockBinary 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. Countdown TimerCountdown timer: set hours/minutes/seconds with fullscreen, sound alerts and loop for exams, workouts and presentations Supports batch processing and one-click copy. Add or Subtract DaysDate 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. Date Difference CalculatorDate 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. Time & Date · 28 টি টুল →

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. Image Compressor & ResizerImage 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. Image to 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. Distance Between Two PointsDistance 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. Math · 53 টি টুল →

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. Other · 114 টি টুল →

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. Cookie FormatterCookie 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. Gzip Compress/DecompressGzip compress tool: compress text to Base64-encoded Gzip or decompress back for transfer and storage, with one-click copy and offline. Developer Tools · 42 টি টুল →

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. CSS Gradient GeneratorCSS 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. Designer Tools · 39 টি টুল →

Teacher Tools

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. Teacher Tools · 21 টি টুল →

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. Accounting Tools · 57 টি টুল →

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. Exam CountdownExam 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. Word & Character CounterWord 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. Discount CalculatorDiscount 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. Percentage CalculatorPercentage 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. Volumetric Weight CalculatorVolumetric weight calculator: enter parcel dimensions to compare air (÷5000), express (÷6000) and sea (÷4000) divisors against actual weight for the chargeable weight. cm/in supported, copy and offline ready.

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. BMI CalculatorBMI calculator: get BMI, BMI Prime, category and healthy range in metric or imperial with gauge for fitness, with one-click copy, offline and multilingual. BMR CalculatorCalculate BMR (Mifflin-St Jeor and Harris-Benedict), TDEE, BMI and fat-loss or muscle-gain targets with metric or imperial units. 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. Fitness Tools · 29 টি টুল →

Engineering Tools

Slope and material volume tools for construction

Aggregates & Groundworks EstimatorAggregates estimator: enter volume, area or holes to estimate ballast, sand, shingle, hardcore, postcrete, blocks, paving, screed, self-leveller, render and asphalt with UK-standard coverage, waste and cost. Bathroom & Kitchen EstimatorBathroom and kitchen estimator: enter counts, lengths or area to estimate WCs, basins, trays, baths, enclosures, worktops, sinks, taps, valves, copper and waste pipes, radiators and underfloor heating with UK sizes, waste and cost. 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. Building Material EstimatorBuilding material estimator: enter the job area to estimate PIR insulation boards, plasterboards, roof tiles, tile adhesive, grout and roofing felt with UK-standard coverage rates, waste allowance and cost. One-click copy, offline-ready. Concrete Volume CalculatorConcrete volume calculator: calculate concrete volume and estimate cement and sand per ratio for construction, with one-click copy and offline. Decor & Finishing EstimatorDecor estimator: enter area, length or count to estimate emulsion, laminate, architrave, skirting, coving, tile trim, backer boards, door linings, lintels, ridge tiles, guttering, membrane and DPC with UK coverage, waste and cost. Electrical EstimatorElectrical estimator: enter lengths or counts to estimate SWA cable, conduit, trunking, LED strips, connectors, clips, consumer units, RCDs, MCBs, switches, sockets, back boxes and fixings with UK-standard packs, waste and cost. 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. Engineering Tools · 14 টি টুল →

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. Career Tools · 54 টি টুল →

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. Content Creator Tools · 13 টি টুল →

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. Text Case ConverterText 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. Morse Code TranslatorMorse 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. Language Tools · 15 টি টুল →

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. MetronomeMetronome 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,.

Gamer Tools

Speed, reaction and win-rate tools for gamers

Aim TrainerAim 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.

সর্বশেষ টুল

Curtain Fabric CalculatorCurtain fabric calculator: enter window width and drop, pick fullness (1.5/2/2.5/3) and fabric width for panels, metres and yards incl. 20cm hems. cm/in supported. UK Delay Repay CalculatorUK Delay Repay calculator: enter ticket type, fare and delay minutes to get your refund under the National Rail 15/30/60/120-minute tiers, with season-ticket journey divisor and a copy-ready English appeal letter (28-day deadline). Garden DIY EstimatorGarden DIY estimator: enter area or volume to estimate sod pallets and rolls, grass seed, raised-bed fill, bark mulch and topsoil with UK-standard coverage, waste and cost. Copy and offline ready. Schengen 90/180 CalculatorSchengen 90/180 calculator: rolling-window check of past stays plus planned trip for days used, days left and max stay from entry, with D-visa exclusion and overstay warning. Reference only, not legal advice. Volumetric Weight CalculatorVolumetric weight calculator: enter parcel dimensions to compare air (÷5000), express (÷6000) and sea (÷4000) divisors against actual weight for the chargeable weight. cm/in supported, copy and offline ready. Aggregates & Groundworks EstimatorAggregates estimator: enter volume, area or holes to estimate ballast, sand, shingle, hardcore, postcrete, blocks, paving, screed, self-leveller, render and asphalt with UK-standard coverage, waste and cost. Bathroom & Kitchen EstimatorBathroom and kitchen estimator: enter counts, lengths or area to estimate WCs, basins, trays, baths, enclosures, worktops, sinks, taps, valves, copper and waste pipes, radiators and underfloor heating with UK sizes, waste and cost. Building Material EstimatorBuilding material estimator: enter the job area to estimate PIR insulation boards, plasterboards, roof tiles, tile adhesive, grout and roofing felt with UK-standard coverage rates, waste allowance and cost. One-click copy, offline-ready.