ToolForge

Outils en ligne gratuits, de nouveaux chaque jour

Outils par métier

Développeurs, designers, enseignants, comptables, étudiants... trouvez votre boîte à outils.

💻 Outils pour développeurs · 42 🎨 Outils de design · 39 📚 Outils pour enseignants · 21 🧾 Outils de comptabilité · 57 🎓 Outils pour étudiants · 11 🛒 Outils e-commerce · 11 🚚 Outils logistiques · 9 💪 Outils de fitness · 29 🏗️ Outils de construction · 125 💼 Outils de carrière · 54 📱 Outils pour créateurs · 13 🍼 Outils parentaux · 5 📷 Outils photo · 9 🗣️ Outils de langues · 15 🎵 Outils pour musiciens · 10 ⚖️ Outils juridiques · 5 🎮 Outils gamer · 8

Couleurs

Outils de conversion de couleurs, de contraste et de palettes

Vérificateur de contraste de couleurColor contrast checker: calculate contrast per WCAG 2.1 and AA/AAA pass with picker and replacement suggestions for accessible design. Convertisseur de couleur HSL/HSVColor HSL converter: convert between HEX, RGB, HSL and HSV with live preview for frontend and design, one-click copy and offline. Mélangeur de couleursColor mixer: blend two colors by ratio with gradient preview, supports HEX/RGB/HSL conversion and scale generation for palettes. Recherche de nom de couleurColor 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. Ajusteur de teinte de couleurColor shade adjuster: lighten or darken a HEX color by percentage with live preview for design and UI states, one-click copy and offline. Opacité HEX vers 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. Convertisseur HEX vers CMJNHEX 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. Convertisseur HEX vers 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. Générateur de couleurs accessiblesRandom accessible color: generate random foreground background pairs meeting WCAG contrast with score, lock and bulk for design accessibility, with with one-click. Convertisseur RGB vers 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. Recherche de couleurs web sûresWeb 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.

Encodage et décodage

Outils de conversion de données : encodage, décodage, hachage, échappement et plus

Encodeur / décodeur Base58Base58 codec tool: support Base58 encoding and decoding for Bitcoin address format for development and blockchain, with one-click copy, offline. Encodeur / Décodeur 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. Encodeur / Décodeur HEX et hex dumpHex converter: support text and hex conversion with offset and ASCII hex dump viewer for development and debugging, with one-click copy and offline. Décodeur 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. Calculatrice de hachage SHASHA hash calculator: compute SHA-1, SHA-256 and SHA-512 hashes for file verification and learning, with one-click copy and offline. Encodeur / Décodeur URLURL encode decode tool: support URL encoding and decoding with special characters and bulk for development, with one-click copy, offline. Analyseur / Générateur de paramètres URLURL params parser: parse query string to JSON and table handling repeats and encoding or generate back for development, with one-click copy and offline. Outil de chiffre de VigenèreVigenere cipher tool: encrypt and decrypt text by key with case preserve for learning and fun, with one-click copy, offline.

Convertisseurs

Convertisseurs d'unités, de bases, d'encodages et de données

Convertisseur de surfaceArea converter: convert between sqm, mu, hectare and sqft with live table for daily and engineering, with one-click copy, offline and multilingual. Traducteur binaireBinary translator: support text and binary conversion with bulk and format for learning and dev, with one-click copy, offline. Convertisseur d’octets et de stockageByte 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. Convertisseur de tailles de vêtementsClothing size converter: convert CN, US, EU and JP sizes with chest/waist/hip charts for men, women, kids and shoes for cross-border shopping. Convertisseur de cuisineCooking converter: convert volume, weight and temperature among cups, oz, g, ml, °C/°F with ingredient densities for baking and recipes. Convertisseur de devisesCurrency converter: 30 currencies with cached rates for offline use (USD,EUR,CNY,JPY). For travel and trade. Supports batch processing and one-click copy. Convertisseur de débitData rate converter: convert between Mbps, MB/s, Gbps and more speed units with download time reference for networking, one-click copy and offline. Convertisseur de décibelsDecibel converter: convert dB, dBm, dBV and power/voltage ratios with reference impedance and SPL for audio and RF engineering. Convertisseur d'unités d'énergieEnergy 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. Convertisseur d'unités de fréquenceFrequency converter: convert between Hz, kHz, MHz, GHz and wavelength showing all results at once for wireless and communications, with one-click copy and offline. Convertisseur de taille de chapeauHat 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. Convertisseur de longueurLength converter: convert length among meters, feet and inches with common references for engineering and daily use. Supports batch processing and one-click copy. Convertisseurs · 25 outils →

Finance

Calculateurs de prêt, d'intérêts et de finances

Défi d'épargne de 100 jours100 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. Défi d'épargne de 52 semainesSave 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. Tableau d'amortissement de prêtAmortization schedule generator: create monthly payment breakdown and chart from amount, rate and term for mortgage and finance, with one-click copy, offline. Convertisseur APR/APYConvert 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. Calculateur de partage d'additionBill 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 outils →

Texte

Outils texte : comptage de mots, encodage et mise en forme

Générateur d'acronymesAcronym generator: convert phrases to acronyms with multi-style and readability score for branding, with one-click copy, offline and multilingual. Ajouter des numéros de ligneAdd line numbers to text with a custom start and separator. Adds line numbers with custom start and separator for code and docs. Chiffre AtbashAtbash cipher tool: encrypt and decrypt by reverse alphabet substitution with case preserve for learning and fun, with one-click copy, offline. Traducteur BrailleBraille translator: convert between English, numbers, pinyin and Unicode braille dots, supports Grade 1, letters, numbers and punctuation for accessibility learning. Générateur de texte à bullesBubble text generator: convert text to circle and bubble effect fonts with multiple styles for social and nicknames, with one-click copy and offline. Compteur de fréquence de caractèresCharacter frequency counter: count letters and words in real time with sorting for writing, with one-click copy and offline. Extracteur d’emailsEmail extractor: paste text to extract all email addresses with dedup, sorting and CSV export for marketing and data cleaning. Compteur et suppresseur d'emojisEmoji 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. Générateur de texte élégantFancy text generator: convert plain text to stylish Unicode fonts with copy and social compatibility check for bios and headings. Rechercher et remplacerFind and replace: paste text to batch find and replace by keyword with regex, case and whole word for text cleaning and editing. Vérificateur de densité de mots-clésKeyword density checker: count occurrences, density and frequency per 100 words for keywords with SEO tips, one-click copy, offline and multilingual. Convertisseur de leetspeakLeetspeak converter: convert between English and leet with multiple strength levels and custom mapping for fun and password ideas. Texte · 37 outils →

Développeur

Outils pour développeurs : JSON, regex, CSV et plus

Table ASCIIASCII table tool: lookup char decimal, hex and binary with search and copy for development and learning, with one-click copy, offline. Convertisseur Base32Base32 converter tool: support Base32 encoding and decoding with padding and bulk for development, with one-click copy, offline. Aperçu d'image Base64Base64 image viewer: paste a Data URL or raw Base64 to preview the image locally with estimated size. Nothing is uploaded. Ideal for frontend debugging. 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. Générateur de dégradé coniqueConic 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. Validateur de carte bancaireCredit card validator: validate numbers with Luhn and detect Visa and Mastercard for payments and fraud prevention, with one-click copy and offline. Générateur d'expressions cronCron generator: visually pick minute/hour/day/month/week to build Cron, parse and preview next runs for scheduling and DevOps. Validateur d'adresses cryptoCrypto address validator: validate BTC/ETH and multi-chain formats with checksum, chain hints and error tips before transfers. Générateur d'easing CSSCSS easing generator: visually adjust cubic-bezier curve to generate transition code with live preview for frontend and animation, with one-click copy and offline. Calculateur de spécificité CSSCSS specificity calculator: enter any selector to get specificity a,b,c with priority and override explanation for frontend debugging, one-click copy and offline. Convertisseur d'unités CSSCSS 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. Développeur · 66 outils →

Générateurs

Générateurs de mots de passe, d'UUID et de nombres aléatoires

Générateur d'art ASCIITurn A-Z and 0-9 text into large 5-row ASCII art instantly, with one-click copy. Ideal for nicknames, signatures and posts. Latin letters and digits only. Générateur de noms d'entrepriseBusiness name generator: generate tech and classic style candidates from keywords with filtering for startups, with one-click copy and offline. Tirage et distribution de cartesCard deck dealer: shuffle and deal from 52 cards without duplicates, custom players and counts. Supports batch export, one-click copy and sharing. Validateur et générateur de carte d'identité chinoiseChina ID card validator: validate 18-digit format rules including region and checksum for development and testing, with one-click copy and offline. Pile ou faceCoin flip: simulate fair coin toss, multiple flips and stats with custom heads/tails labels and history for draws and probability demos. Lancer de désDice roller: roll 1-20 dice with multiple sides automatically summing total for board games, with one-click copy and offline. Générateur de code-barres EAN-13EAN-13 barcode generator: enter 12 digits to calculate check digit and generate printable barcodes for retail and inventory, with one-click copy and offline. Générateur de noms anglaisEnglish name generator: generate names by gender, style and initial with meaning and pronunciation, with favorites and copy for naming and characters. Générateur de personnes fictivesFake 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. Validateur et générateur IMEIIMEI 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. Latin Declension GeneratorLatin declension generator: stem plus 1st/2nd/3rd declension for a full singular and plural case table. Générateur de clés de licenceLicense key generator: create software license keys by pattern with grouping, checksum and batch export for dev testing and licensing. Générateurs · 39 outils →

Calculatrices

Calculatrices du quotidien : pourcentages, IMC et plus

Heure et date

Outils d'âge, de différence de dates et d'horodatage

Calculatrice d’âgeOnline age calculator: enter birthdate to get exact age in years/months/days, total days/hours, next birthday countdown, zodiac with Gregorian/lunar support. Calculateur de différence d'âgeCalculate the difference between two dates in years, months and days. Calculates age gap in years/months/days with leap year support. Réveil en ligneOnline alarm clock tool: set time and ringtone with fullscreen and background alert for daily and work reminders, with one-click copy, offline. Horloge binaireBinary clock tool: show real-time binary clock with multi-format and learning mode for study and geek, with one-click copy, offline. Compte à rebours d'anniversaireBirthday countdown tool: get countdown and age from birthday with reminders for wishes and anniversaries, with one-click copy, offline. MinuteurCountdown timer: set hours/minutes/seconds with fullscreen, sound alerts and loop for exams, workouts and presentations Supports batch processing and one-click copy. Ajouter ou soustraire des joursDate 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. Compte à rebours de dateDate countdown: pick target date to get remaining days, hours and minutes with holiday and anniversary reminders for planning. Calculatrice de différence entre datesDate difference calculator: count days, weeks, months, business and weekend days between dates with auto order handling, one-click copy and offline. Convertisseur de format de dateDate 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. Infos sur une dateDate info calculator: enter date to get weekday, leap year, day of year and quarter with holiday marks for calendar and work planning. Convertisseur de date ExcelExcel date converter: convert between Excel serial numbers and dates 1900 system with bulk and formatting for office data, with one-click copy and offline. Heure et date · 28 outils →

Image

Outils de traitement d'images (en préparation)

Générateur de QR colorésColorful 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. Calculateur de ratio de recadrageImage 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. Compresseur et redimensionneur d’imagesImage compressor: customize dimensions and quality to compress JPG, PNG and WebP keeping transparency for design, with one-click copy and offline. Fusionneur d'imagesImage concatenate: stitch multiple images horizontally or vertically with spacing, background and size for long and comparison images. Estimateur de taille d'imageImage file size: estimate file size by resolution, bit depth and format with compression reference for upload and storage planning. Retourneur d'imageImage flipper: flip images horizontally or vertically with rotation and download for composition and fun edits. Supports batch processing and one-click copy. Convertisseur de format d’imageImage format converter: pick an image and target format (PNG/JPG/WebP/GIF/BMP), converted locally in your browser. Quality setting for JPEG/WebP, live preview and download. Redimensionneur d'imagesImage resizer: resize by percent or width/height with live preview supporting PNG/JPG/WebP locally for design, with one-click copy and offline. Image vers Base64Image to Base64: pick an image to get its Base64 Data URL locally. Nothing is uploaded. With preview and one-click copy. Découpeur de grille InstagramInstagram 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. Convertisseur SVG vers PNGSVG to PNG tool: batch convert SVG to PNG with size, background and transparency for design and development, with one-click copy, offline.

Réseau

Outils réseau : IP, DNS et plus (en préparation)

Calculateur de forfait dataData plan calculator: estimate monthly remaining, overage and plan recommendations by daily usage and quota with multi-plan comparison. Générateur et validateur d'adresses MACMAC address generator: generate valid MAC addresses or validate format supporting colon and hyphen for networking, with one-click copy and offline. Convertisseur de vitesse réseauNetwork 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. Recherche de service par portPort 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. Générateur d’IP aléatoiresRandom IP generator: bulk generate random IPv4 or IPv6 addresses excluding private ranges with custom count for network testing, with one-click copy and offline.

Maths

Outils mathématiques : conversion de bases, nombres aléatoires et plus

Solveur du jeu du 2424 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. Calculateur de suite arithmétiqueCalculate 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. Calculatrice binaireBinary calculator: support binary add subtract multiply divide and bitwise with decimal view for learning and dev, with one-click copy, offline. Calculateur de cercleCircle calculator: calculate area, circumference and diameter from radius, diameter or circumference for learning, with one-click copy and offline. Calculateur de nombres complexesComplex number calculator: add, subtract, multiply and divide complex numbers with magnitude and conjugate, showing a+bi with polar view for math, one-click copy. Calculateur d'intervalle de confianceConfidence interval calculator: calculate interval from sample mean and size at 90/95/99% for statistics, with one-click copy and offline. Calculateur de coefficient de corrélationCorrelation coefficient: enter two datasets to get Pearson and Spearman with significance, scatter plot and regression for analysis. Calculateur décimal vers fractionDecimal to fraction converter: convert decimals to simplest fractions and mixed numbers with repeating detection for math, with one-click copy and offline. Calculateur de dilutionDilution calculator: calculate stock volume and solvent by C1V1=C2V2 with molarity and percent for lab and reagent preparation. Calculateur de distance entre pointsDistance between points: enter two points to get straight distance, midpoint and slope in 2D and 3D with unit conversion for math and surveying. Calculatrice de factorielleFactorial calculator: calculate n! with digit count supporting 0-170 using scientific notation for larger with tips for math, with one-click copy and offline. Calculateur de suite de FibonacciFibonacci calculator: generate sequence, get Nth term and sum by count with fast matrix and big integers for math and algorithms. Maths · 53 outils →

Autres

Autres outils pratiques

Jeu 2048Play 2048 online: merge number tiles with arrow keys or swipe to reach 2048. Supports keyboard and touch, score and best record, offline play. Générateur d'idées d'activitésGenerate 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. Calculateur d'âge sur les planètesAge on planets calculator: get age on planets from Earth birthday with next birthday for science and fun, with one-click copy, offline and multilingual. Calculateur d'alcool par volumeCalculate alcohol by volume (ABV) from original and final gravity. Calculates ABV from OG and FG with calories. Supports batch processing and one-click copy. Calculateur de température ressentieCompute heat index or wind chill from temperature and conditions. Calculates wind chill and heat index from temp, humidity and wind. Aquarium Substrate CalculatorAquarium substrate: tank size and depth for sand/gravel/aquasoil kilograms, pounds, 5kg bags and cost. cm/in supported. Calculateur de volume d'aquariumAquarium volume calculator: get volume, water and glass thickness from dimensions with unit conversion for fish keeping, with one-click copy, offline. Calculateur de jauge AWGConvert AWG wire gauge to diameter, area and resistance. Calculates diameter, area, resistance and ampacity by AWG. Supports batch processing and one-click copy. Vérification de la batterieBattery info detector: check level, charging status, health and estimated runtime in real time, with discharge estimate and reminders. Works in browsers supporting Battery API. Calculateur d'autonomie de batterieBattery life calculator: get runtime from capacity and consumption with multi-device compare for purchase and use, with one-click copy, offline. Calculateur d'alcoolémieBlood alcohol calculator: estimate BAC from weight, drinks and time with legal standard for safety and health, with one-click copy, offline. Catégorie de tensionBlood pressure category tool: get category from systolic and diastolic with advice for health and monitoring, with one-click copy, offline. Autres · 115 outils →

Outils pour développeurs

Utilitaires de développement et de débogage pour programmeurs

Chiffrement / déchiffrement AESAES encrypt decrypt tool: support AES encryption and decryption with key and IV for development and security, with one-click copy, offline and multilingual. Chiffre de CésarCaesar cipher tool: encrypt and decrypt with any shift 1-25, letters only with case preserved for learning, one-click copy and offline. Générateur de codes-barres Code128Code128 barcode generator: support ASCII charset with automatic checksum generating standard barcode SVG for products and logistics, with one-click copy and offline. Formateur de cookiesCookie formatter: parses Cookie strings to JSON/table with URL decoding and rebuilds Cookies from JSON. For debugging. Supports batch processing and one-click copy. Somme de contrôle CRC32 / Adler-32Checksum calculator: support CRC32 and Adler-32 algorithms outputting hex and decimal results for file and data verification, with one-click copy and offline. Analyseur d’expressions CronCron parser: parse 5-field cron expressions into readable descriptions and next run times for scheduling, with one-click copy and offline. Formateur et minificateur CSSCSS 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 vers tableau MarkdownCSV to Markdown: converts CSV to Markdown tables with comma/semicolon/Tab and quote handling. Supports batch processing, export and one-click copy, offline use. Calculateur de temps de téléchargementDownload time estimator: calculate download time from file size and connection speed for downloads, with one-click copy and offline. Formateur .env.env formatter: parse KEY=VALUE and align, trim and escape or convert to JSON for config and deployment, with one-click copy and offline. Générateur .gitignoreGitignore generator: select Node, Python, Java, Go, Vue etc to generate .gitignore with custom merge. Supports batch processing, export and one-click copy. Compression / Décompression GzipGzip compress tool: compress text to Base64-encoded Gzip or decompress back for transfer and storage, with one-click copy and offline. Outils pour développeurs · 42 outils →

Outils de design

Outils de couleurs, de mise en page et d'images pour designers

Générateur d'avatars (identicon)Avatar generator: create cartoon avatars from name or random with style, size and background for social and dev, with one-click copy, offline. Générateur de formes organiquesBlob maker: customize random blob shapes with color and animation export for design and backgrounds, with one-click copy, offline. Générateur de rayons de bordureBorder radius generator: adjust four corners with live preview generating border-radius code for design, with one-click copy and offline. Générateur de box-shadowCSS 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. Générateur de clip-pathClip-path generator: visually drag polygon, circle and ellipse clipping with live preview and code copy, responsive and animated for front-end layouts. Sélecteur de couleurs en ligneColor 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. Générateur de schémas de couleursColor scheme generator: generate complementary and triadic palettes from a base color with HEX output for design and branding, with one-click copy and offline. Générateur d'animations CSSCSS animation generator: pick animation type, duration and easing to generate keyframes code with live preview for frontend, with one-click copy and offline. Générateur de filtres CSSCSS filter generator: adjust blur, brightness, contrast and hue with live preview and code copy for image effects. Supports batch processing and one-click copy. Générateur de dégradés CSSCSS 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. Générateur CSS GridCSS 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. Visualiseur de courbes d'easingEasing visualizer: pick from 8 easings (ease, linear, ease-in-out, bounce…) for an instant SVG curve plus paste-ready CSS value, with one-click copy. Outils de design · 39 outils →

Outils pour enseignants

Outils d'enseignement, de quiz et de gestion de classe pour enseignants

Calculateur de présenceAttendance calculator: get attendance rate from required and actual with level and tips for attendance and HR, with one-click copy, offline. Générateur de certificats de récompenseAward generator: customize title, name and award to create certificates with print and download for recognition, with one-click copy, offline. Générateur de cartes de bingoBingo generator: create bingo cards from word list with print and online play for teaching and events, with one-click copy, offline. Générateur de calendrier mensuelMonth calendar generator: pick any year and month to generate a calendar with weekdays and holidays, with print and export, one-click copy and offline. Générateur de dictéeDictation generator: enter one "word,meaning" per line for an instant student sheet (words only) plus teacher answer key, generated locally. Copy and print. Simplificateur de fractionsFraction simplifier: enter numerator and denominator to reduce to lowest terms and convert to mixed numbers and decimals for math, one-click copy and offline. Calculateur de pourcentage et noteGrade calculator: enter assignments, midterm and final weights to get current total and required scores with grade bands for students. Générateur de groupesGroup 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. Générateur de grilles d'écriture chinoiseHanzi grid generator: enter Chinese characters (up to 50) for an instant tianzi-grid practice sheet in 3 sizes, with copyable HTML for printing. Générateur d'exercices de mathsMath quiz: generate random arithmetic problems by difficulty with timer and score for student practice and speed. Supports batch processing and one-click copy. Générateur de fiches de calculMath worksheet generator: create arithmetic worksheets by grade and type with printable sheets and answers for teachers and parents. Entraînement au calcul mentalMental math: generate random arithmetic problems with timer and accuracy stats for speed and brain training. Supports batch processing and one-click copy. Outils pour enseignants · 21 outils →

Outils de comptabilité

Outils de taxes, d'amortissement et de factures pour comptables

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. Calculateur d'intérêts de dépôtBank 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. Calculateur de seuil de rentabilitéBreak-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. Calculateur d'impôt sur salaire (Chine)China salary tax calculator: calculate income tax from salary, insurance and deductions using progressive rates for payroll, one-click copy and offline. Conversion de montants RMB en lettresChinese 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. Calculateur d'amortissementDepreciation 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. Outils de comptabilité · 57 outils →

Outils pour étudiants

Outils d'étude, d'examens et de productivité pour étudiants

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. Générateur de citationsCitation generator: create APA, MLA, Chicago and GB/T 7714 references for books, journals and web with DOI auto-fill and batch export for papers. Compte à rebours d'examenExam 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. Calculateur de note finale requiseFinal 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. Calculatrice de GPAGPA calculator: calculate weighted GPA from grades and credits supporting 4.0/5.0 scales with conversion for students, with one-click copy and offline. Convertisseur d'échelle GPAGPA scale converter: convert between 4.0/5.0 and percentage with credit-weighted GPA and multi-term cumulative for study abroad. Minuteur PomodoroPomodoro 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. Générateur de plan de révisionReview schedule: enter a start date and pick Ebbinghaus (days 1/2/4/7/15/30), weekly (3/7/14/30) or custom (1/3/5/7) plan for an instant review-date list with one-click copy. Calculatrice de statistiquesStatistics calculator: compute sum, mean, median, mode, variance and deviation with chart for analysis, with one-click copy and offline. Calculateur de temps d'étudeStudy time calculator: allocate daily study time by subject and goal with progress tracking for exam prep, with one-click copy, offline and multilingual. Compteur de mots et caractèresWord count tool: count characters, words and paragraphs with reading time and keywords for writing and editing, with one-click copy, offline.

Outils e-commerce

Outils de promotion, de conversion et de tarification pour le e-commerce

Calculateur de panier moyenAOV calculator: get average order value from total sales and orders with trend for e-commerce and operations, with one-click copy, offline. Calculateur de commissionCommission calculator: get commission by sales, tiered rates and fixed bonus with tier comparison and net pay for sales incentives. Calculateur de taux de conversionConversion rate calculator: compute CTR, conversion rate and AOV from impressions and clicks for e-commerce, with one-click copy and offline. Calculatrice de remiseDiscount calculator: calculate sale price from original or reverse to original quickly showing savings and final price for shopping, with one-click copy and offline. Calculateur d'entonnoir de conversionFunnel calculator: enter stage counts to get conversion rates, drop-off and overall conversion with funnel chart for ops and sales. Calculateur de marge et majorationGross margin calculator: enter revenue and cost to get gross profit, margin and markup with multi-product comparison for pricing. Calculatrice de pourcentagePercentage calculator: four modes for share, value, change and reverse total with live formula for daily use, with one-click copy, offline and history. Calculateur de remisePromo 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. Calculateur de taux de retourReturn rate calculator: get total and annualized return from start, end values and time with multiple cash flows for investment evaluation, with with one-click. Comparateur de prix unitairesUnit price compare calculator: get unit price from price and quantity with cost comparison and savings for shopping, with one-click copy, offline.

Outils logistiques

Outils de poids volumétrique et de chargement de conteneurs pour la logistique

Calculateur de chargement de conteneurContainer 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. Calculateur CBMCBM calculator: calculate single and total volume from dimensions and quantity for logistics, with one-click copy and offline. Calculateur de date de livraisonDelivery date calculator: estimate arrival from order date and shipping days excluding weekends for e-commerce, with one-click copy and offline. Calculateur de frais de livraisonExpress freight calculator: calculate delivery cost from first and additional weight with custom prices for e-commerce, with one-click copy and offline. Calculateur de rotation des stocksInventory turnover calculator: calculate turnover ratio and days from COGS and inventory with tips for warehouse and finance, with one-click copy and offline. Calculateur de chargement de palettePallet 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. Calculateur de poids volumétriqueVolumetric weight: enters dimensions and weight to compute dimensional and billable weight. Supports batch processing, export and one-click copy, offline use. Calculateur de poids volumétriqueVolumetric 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.

Outils de fitness

Outils d'entraînement, de force et de brûlage de graisse pour le fitness

Calculateur de calories d'activitéEstimate calories burned for common activities using MET values. Estimates calories by activity, duration and weight for fat loss. Calculatrice d’IMCBMI calculator: get BMI, BMI Prime, category and healthy range in metric or imperial with gauge for fitness, with one-click copy, offline and multilingual. Calculatrice de BMRCalculatrice de BMR en ligne avec unités métriques et impériales. Utilise les formules de Mifflin-St Jeor et Harris-Benedict pour calculer BMR, TDEE, IMC et des conseils de perte de graisse ou de prise de muscle. Calculatrice de masse grasseBody fat calculator: based on US Navy and BMI formulas, enter height, weight and waist/hip to estimate body fat %, fat mass and health category. Calculateur de surface corporelleBSA calculator: calculate body surface area from height and weight using Mosteller formula for medical, with one-click copy and offline. Calculatrice de calories quotidiennesDaily calorie calculator: estimate maintenance calories from gender, age, height, weight and activity with tips for fitness, one-click copy and offline. Calculateur de déficit caloriqueCalorie 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. Calculateur de calories de véloCycling calories: estimates calories, power and fat burn by weight, time, speed and intensity with metric/imperial. Supports batch processing and one-click copy. Calculateur de zone de brûlage de graisseFat 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. Calculateur de réserve cardiaqueHeart 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. Zones de fréquence cardiaqueHeart 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. Calculatrice de poids idéalIdeal weight calculator: uses Devine, Robinson, Miller formulas and BMI to compute ideal range. Supports batch processing, export and one-click copy, sharing. Outils de fitness · 29 outils →

Outils de construction

Outils de pente et de volume de matériaux pour la 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. Air Brick CalculatorAir brick calculator: wall length at 1.8m spacing for 215×65mm underfloor ventilation bricks. Angle Bead CalculatorAngle bead calculator: enter corner count and height for 2.4m galvanised beads and cost. Waste and price supported. Architrave CalculatorArchitrave calculator: door count for 70mm 2.1m sticks at 3 per door plus mitre waste. Arris Capping CalculatorArris capping calculator: fence length for 75×75 2.4m capping lengths with mitre waste. Asphalt Driveway CalculatorAsphalt calculator: driveway dimensions and depth for tonnage at 2.4t per m³, volume, truck loads and bags. Flush Back Box CalculatorFlush back box selector: gangs, wall type and available depth for dry-lining or 25/35mm metal box plus cut-out size. Tile Backer Board CalculatorBacker board calculator: area for 1200×600×12mm boards plus screws with cutting waste. Ballast CalculatorBallast calculator: pour volume for 20mm all-in ballast tonnes in 850kg bulk bags plus cement mix guide. Kitchen Base Unit CalculatorBase unit calculator: total run for a mix of standard 1000/800/600/500/400mm cabinets, door count and filler width. Bath Water & Heating CalculatorBath calculator: pick a standard UK tub size and fill level for full capacity, water used in litres and the kWh needed to heat it. Check your boiler or cylinder can cope. 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. Outils de construction · 125 outils →

Outils de carrière

Outils de salaire, de présence et de carrière pour les professionnels

Outils pour créateurs

Outils de tailles de plateformes, de titres et de hashtags pour créateurs de contenu

Générateur de hashtagsHashtag generator: enter keywords to generate viral hashtags for Xiaohongshu and Instagram. Supports batch processing, export and one-click copy with sharing. Générateur de balises MetaMeta tag generator: creates title, description, keywords and Open Graph tags for SEO with preview. Supports batch processing, export and one-click copy, offline use. Générateur d'image OGOG 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. Guide des tailles d'imagesPlatform image size lookup: covers Douyin, Kuaishou, Xiaohongshu, YouTube specs. Supports batch processing, export and one-click multilingual copy. Calculateur de temps de lectureScript reading time calculator: get speaking time from word count and speed with paragraph estimate for hosting and dubbing, with one-click copy, offline. Aperçu de carte socialeSocial card preview: simulate WeChat, Facebook and Twitter share card effects for marketing, with one-click copy and offline. Extracteur d'informations socialesSocial tag extractor: extract hashtags and mentions from text with frequency and dedup for social media and content, with one-click copy, offline and multilingual. Convertisseur de sous-titresSRT 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. Calculateur de minutage de sous-titresSubtitle 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. Optimiseur de titresTitle optimizer: check title length against platform limits like Douyin and suggest improvements for clicks and exposure, with one-click copy and offline. Calculateur d'images vidéoVideo frame calculator: get total frames and duration from time and fps with bitrate estimate for editing, with one-click copy, offline. Calculateur de durée de lectureVideo playback calculator: calculate watch time from duration and speed or find required speed for courses, one-click copy and offline. Outils pour créateurs · 13 outils →

Outils parentaux

Outils d'âge de bébé et de vaccination pour les parents

Calculateur d'âge de bébéBaby age calculator: get months, days and milestones from birth date with growth chart for parenting, with one-click copy, offline and multilingual. Prédicteur de taille adulteChild height prediction: predict adult height range from parents height with genetic formula, gender and bone age correction plus growth curve for pediatrics. Calculateur d'âge gestationnelGestational age calculator: get weeks, days and due date by last period or ultrasound with fetal development reference for prenatal care. Calculateur de prise de poids pendant la grossessePregnancy weight gain guide: get total and weekly gain ranges from pre-pregnancy BMI for maternal health, one-click copy and offline. Calendrier vaccinalVaccine schedule tool: reference for 0-6 year immunization including hepatitis B and polio months for parents, with one-click copy and offline.

Outils photo

Outils de profondeur de champ et d'exposition pour photographes

Comparateur de diaphragmeCompare two f-stops: stops apart and light ratio - for exposure and depth of field. Supports batch processing and one-click copy, offline use. Calculateur de facteur de recadrageCrop factor calculator: calculate crop factor and 35mm equivalent from sensor size for photography, with one-click copy and offline. Calculateur de profondeur de champDepth of field calculator: enter focal length, aperture, distance and sensor to get DoF, hyperfocal and CoC for photography and lens choice. Calculateur d'expositionExposure calculator: calculate EV and equivalent combinations from aperture, shutter and ISO for photography, with one-click copy and offline. Calculateur de distance hyperfocaleHyperfocal distance: get hyperfocal and DoF range by focal length, aperture and sensor for landscape and panorama focus Supports batch processing and one-click copy. Calculateur de mégapixelsMegapixel calculator: get total pixels and megapixels by resolution with print size and file size for photography and design. Calculateur d'exposition avec filtre NDND filter calculator: calculate exposure time with ND filter from base shutter and stops with settings for long exposure, one-click copy and offline. Calculateur de coût d'impression photoPhoto 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. Calculateur de taille d'impressionPrint size calculator: get print size from pixels and DPI with paper mapping for photo, poster and canvas, with one-click copy, offline and multilingual.

Outils de langues

Outils de vocabulaire et de texte pour apprenants de langues

Outils pour musiciens

Outils de tempo, de notes et de transposition pour musiciens

Tempo par tapotement (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. Calculateur BPM vers msBPM to milliseconds converter: calculate delay time from tempo and note value for music production, with one-click copy and offline. Chercheur d'accordsChord finder: pick a root and quality (major/minor/dim/aug/maj7/min7/dom7) to get chord tones and intervals instantly, with one-click copy. Générateur de progressions d'accordsChord progressions: pick a key (C, G, D, A, E, F, Bb, Eb…) and style (pop, folk, rock, blues, ballad) for an instant diatonic progression with one-click copy. Référence d'accordage de guitareGuitar tuning reference: pick standard, half-down, Drop D or Open G for open-string notes and frequencies (A4=440Hz) to tune with your tuner. No microphone detection. MétronomeMetronome 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. Calculateur d'intervalles musicauxMusic interval calculator: get interval name, semitones and frequency ratio by two notes for music theory and compositi Supports batch processing and one-click copy. Fréquence des notesMusic 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. Transpositeur de notesNote transposer: enter original and target keys to transpose notes and fingerings for guitar, piano and jianpu for arranging, with copy, offline and history. Chercheur de gammesScale 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,.

Outils juridiques

Outils d'heures supplémentaires et de congés annuels pour le travail

Calculateur de congés annuelsAnnual leave calculator: get leave days from hire date and seniority with legal standard for HR and employees, with one-click copy, offline. Calculateur de durée de contratContract duration calculator: enter start/end dates to get days, months and years, with business days and renewal reminders for legal and HR. Calculateur de frais de justiceCourt fee calculator (China): calculate filing and preservation fees by claim amount with bracket table for legal budgeting. Calculateur d'heures supplémentairesOvertime pay: computes pay at 1.5x weekday, 2x weekend and 3x holiday rates. For HR. Supports batch processing, export and one-click copy, sharing. Calculateur d'indemnité de licenciementSeverance 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.

Outils gamer

Outils de vitesse, de réaction et de taux de victoire pour joueurs

Entraîneur de viséeAim trainer game: generate random targets with hit rate and reaction time, multi-difficulty and ranking for gaming and reflex, with one-click copy, offline. Test de vitesse de clic (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. Calculateur de probabilité de désDice probability calculator: get sums, ranges and specific combos by dice count and sides with charts and simulation for board games and probability. Calculateur de probabilité gachaGacha probability calculator: calculate probability of at least one hit and expected pulls for gacha planning, with one-click copy and offline. Test de temps de réactionReaction time test: wait for green and click, 5 rounds average with ranking for attention training and mini game, with one-click copy and offline. Guide des rôles loup-garouWerewolf guide: pick any role (werewolf, villager, seer, witch, hunter, guard, idiot) for skills and strategy tips with one-click copy. Distributeur de rôles loup-garouWerewolf roles: pick a 6/9/12/15-player setup for a random mix of werewolves, villagers and special roles (seer, witch, hunter, guard) with one-click copy. Calculateur de taux de victoireWin 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.

Nouveaux outils

Air Brick CalculatorAir brick calculator: wall length at 1.8m spacing for 215×65mm underfloor ventilation bricks. Architrave CalculatorArchitrave calculator: door count for 70mm 2.1m sticks at 3 per door plus mitre waste. Arris Capping CalculatorArris capping calculator: fence length for 75×75 2.4m capping lengths with mitre waste. Asphalt Driveway CalculatorAsphalt calculator: driveway dimensions and depth for tonnage at 2.4t per m³, volume, truck loads and bags. Flush Back Box CalculatorFlush back box selector: gangs, wall type and available depth for dry-lining or 25/35mm metal box plus cut-out size. Tile Backer Board CalculatorBacker board calculator: area for 1200×600×12mm boards plus screws with cutting waste. Ballast CalculatorBallast calculator: pour volume for 20mm all-in ballast tonnes in 850kg bulk bags plus cement mix guide. Kitchen Base Unit CalculatorBase unit calculator: total run for a mix of standard 1000/800/600/500/400mm cabinets, door count and filler width.