Free online tools that respect your privacy
Count words, format JSON, generate passwords and more. Every tool runs right in your browser: nothing you type is uploaded.
Count, convert, clean and compare text right in your browser.
- Accent Remover
- Add Line Numbers
- Caesar and ROT13 Cipher
- Case Converter
- Character Counter
- Find and Replace
- French Typography Fixer
- Hide a Message in Text
- Invisible Character Remover
- Markdown Editor and Previewer
- Morse Code Translator
- NATO Phonetic Alphabet
- Number to Words
- Online Notepad
- Palindrome Checker
- Readability Checker
- Remove Duplicate Lines
- Remove Line Breaks and Extra Spaces
- Reverse Text
- Roman Numeral Converter
- Social Post Length Checker
- Sort Lines
- Text Diff Checker
- Text Repeater
- Text to Binary, Hex and ASCII
- Text to Slug
- Text to Speech
- Unicode Fancy Text Generator
- Upside-Down Text
- Word Counter
- Word Frequency Counter
Format, encode, decode and generate data for everyday development work.
- Base64 Encoder and Decoder
- Bcrypt Generator and Checker
- Bounding Box Calculator
- Chmod Calculator
- Code Diff Checker
- Cron Expression Builder
- CSS Formatter and Minifier
- GeoJSON, KML and GPX Converter
- HAR File Viewer
- Hash Generator
- Hex File Viewer
- HMAC Generator
- HTML Entity Encoder/Decoder
- HTML Formatter
- HTML Table Generator
- HTML to Markdown Converter
- IP Subnet Calculator
- JavaScript AST Explorer
- JavaScript Formatter and Minifier
- JSON Formatter and Validator
- JSON Schema Validator
- JSON to CSV Converter
- JSON to XML Converter
- JSON to YAML Converter
- JSONPath Tester
- JWT Decoder
- JWT Generator and Verifier
- Keyboard Key Code Finder
- Markdown Table Generator
- Number Base Converter
- PGP Key Generator and Encryption
- Regex Railroad Diagram
- Regex Tester
- Shamir Secret Sharing
- SQL Formatter
- SRI Hash Generator
- String Escape/Unescape
- Test Data Generator
- TOML to JSON Converter
- TOTP and HOTP Code Generator
- ULID and Nano ID Generator
- Unix Timestamp Converter
- URL Encoder and Decoder
- URL Parser
- User Agent Parser
- UUID Generator
- WebAssembly Disassembler
- X.509 Certificate Decoder
- XML Formatter
Meta tags, social cards, links and snippets for websites and campaigns.
- .htaccess Redirect Generator
- Content Security Policy Generator
- Email Signature Generator
- Google Search Snippet Preview
- Hashtag and Caption Formatter
- Hreflang Tag Generator
- Keyword Density Checker
- Link in Bio Page Builder
- Mailto Link Generator
- Meta Tag Generator
- Open Graph and Social Card Generator
- Privacy Policy and Terms Template Builder
- Robots.txt Generator
- Schema Markup Generator
- UTM Link Builder
- WhatsApp Link Generator
Pick, convert and combine colors, and generate CSS for your designs.
- Aspect Ratio Calculator
- Border Radius Generator
- Box Shadow Generator
- Clip-Path Generator
- Color Blindness Simulator
- Color Converter
- Color Name Finder
- Color Palette Generator
- Color Picker
- Contrast Checker
- CSS Gradient Generator
- Cubic-Bezier Editor
- Flexbox and Grid Playground
- Font Pairing Previewer
- Font Subsetter
- Image Color Picker
- Palette from Image
- PX to REM Converter
- Tints and Shades Generator
Resize, compress, convert and edit images without uploading them.
- Add Border or Padding to Image
- Add Text to Image
- Add Watermark to Image
- AVIF Converter
- Background Remover
- Blur or Pixelate Image Area
- Circle Crop Profile Picture Maker
- Collage Maker
- CSS Sprite Sheet Generator
- Dithering and Halftone Effect
- EXIF Remover
- EXIF Viewer
- Favicon Generator
- GIF Frame Extractor
- GIF Maker
- Glitch Effect Generator
- HEIC to JPG
- Hide Text in an Image
- Image Comparison
- Image Compressor
- Image Cropper
- Image Format Converter
- Image Resizer
- Image Splitter and Grid Maker
- Image to ASCII Art
- Image to Base64 Converter
- Image to SVG Tracer
- Meme Generator
- Photo Filters
- Placeholder Image Generator
- Rotate and Flip Image
- Screenshot Beautifier
- Social Media Image Resizer
- SVG Optimizer
- SVG to PNG
Merge, split, convert and edit PDFs and spreadsheets in your browser.
- Add Page Numbers to PDF
- Add Watermark to PDF
- Compress PDF
- Crop PDF
- CSV Anonymizer
- CSV Viewer and Editor
- Delete PDF Pages
- Edit PDF Metadata
- EPUB Reader and Text Extractor
- Excel to CSV Converter
- Excel Viewer
- Extract PDF Pages
- Fill PDF Form
- Flatten PDF
- Invoice Generator
- JPG/PNG to PDF
- JSON to Excel Converter
- Markdown to Slides
- Merge PDF
- PDF Booklet Maker
- PDF to JPG/PNG
- PDF to Text
- PDF Viewer
- Protect PDF with Password
- Quote and Estimate Generator
- Redact PDF
- Reorder PDF Pages
- Rotate PDF
- Sign PDF
- Split PDF
- Text or Markdown to PDF
- Unlock PDF
- Word Counter for DOCX Files
Percentages, fractions, equations and geometry, with step-by-step answers.
- Area Calculator
- Average Calculator
- Circle Calculator
- Complex Number Calculator
- Distance Between Coordinates
- Exponent and Root Calculator
- Fraction Calculator
- Fraction to Decimal Converter
- GCD and LCM Calculator
- Graphing Calculator
- Hypothesis Test Calculator
- Linear Equation and System Solver
- Logarithm Calculator
- Long Division Calculator
- Matrix Calculator
- Percentage Calculator
- Percentage Difference Calculator
- Permutation and Combination Calculator
- Prime Number Checker
- Probability Calculator
- Pythagorean Theorem Calculator
- Quadratic Equation Solver
- Ratio and Proportion Solver
- Resistor Color Code Calculator
- Rounding Calculator
- Scientific Calculator
- Scientific Notation Converter
- Significant Figures Calculator
- Standard Deviation Calculator
- Triangle Calculator
- Truth Table Generator
- Volume Calculator
Loans, mortgages, savings, taxes and business math. Estimates, not advice.
- Amortization Schedule
- Break-Even Calculator
- Budget Planner (50/30/20)
- CAGR Calculator
- Car Loan Calculator
- Compound Interest Calculator
- Credit Card Payoff Calculator
- Crypto Profit Calculator
- Debt Snowball and Avalanche Planner
- Discount Calculator
- Dividend Yield Calculator
- Freelance Rate Calculator
- Inflation Calculator
- Investment and Stock Profit Calculator
- Loan Calculator
- Margin and Markup Calculator
- Meeting Cost Timer
- Mortgage Affordability Calculator
- Mortgage Calculator (Canada)
- Net Worth Calculator
- Rent vs Buy Calculator
- Retirement Savings Calculator
- ROI Calculator
- RRSP Tax Refund Estimator
- Salary to Hourly Converter
- Sales Tax Calculator (Canada)
- Sales Tax Calculator (US)
- Savings Goal Calculator
- Simple Interest Calculator
- Take-Home Pay Calculator (Canada/Quebec)
- Tip Calculator and Bill Splitter
- VAT Calculator
Date differences, time zones, timers and calendars.
- Add or Subtract Days
- Age Calculator
- Business Days Calculator
- Countdown Timer
- Date Difference Calculator
- Day of the Week Finder
- Holiday Countdown
- Leap Year Checker
- Meeting Planner
- Online Alarm Clock
- Online Timer
- Pomodoro Timer
- Printable Calendar Generator
- Sleep Calculator
- Stopwatch
- Sun and Moon Position Calculator
- Time Card and Hours Worked Calculator
- Time Duration Calculator
- Time Zone Converter
- Week Number Calculator
- World Clock
Convert length, weight, temperature, volume and dozens of other units.
- Angle Converter
- Area Converter
- Clothing Size Converter
- Cooking Converter
- Data Storage Converter
- Data Transfer Rate Converter
- Density Converter
- Energy Converter
- Force Converter
- Frequency Converter
- Fuel Economy Converter
- GPS Coordinate Converter
- Height Converter (Metric/Imperial)
- Length Converter
- Power Converter
- Pressure Converter
- Shoe Size Converter
- Speed Converter
- Temperature Converter
- Time Converter
- Torque Converter
- Volume Converter
- Weight and Mass Converter
BMI, calories, pace and pregnancy calculators. Estimates, not medical advice.
- BMI Calculator
- BMR Calculator
- Body Fat Calculator
- Calories Burned Calculator
- Heart Rate Zone Calculator
- Ideal Weight Calculator
- Macro Calculator
- One-Rep Max Calculator
- Ovulation Calculator
- Pregnancy Due Date Calculator
- Pregnancy Week Calculator
- Running Pace Calculator
- Sleep Need Calculator
- Steps to Distance Converter
- TDEE and Daily Calorie Calculator
- Water Intake Calculator
Paint, tiles, concrete, recipes, fuel and more, in metric and imperial.
- Baker's Percentage Calculator
- Coffee Ratio Calculator
- Concrete Calculator
- Deck Calculator
- Electricity Cost Calculator
- EV Charging Cost Calculator
- Fence Calculator
- Flooring and Square Footage Calculator
- Gravel, Mulch and Soil Calculator
- Heating and Cooling BTU Calculator
- Moving Checklist and Box Estimator
- Packing List Generator
- Paint Calculator
- Pizza Dough Calculator
- Recipe Scaler
- Solar Panel Estimator
- Speed, Distance and Time Calculator
- Tile Calculator
- Tire Size Calculator
- Trip Cost Splitter
- Trip Fuel Cost Calculator
- Turkey and Roast Cooking Time
- Wallpaper Calculator
Secure passwords, QR codes, random pickers and other generators, all run locally.
- Barcode Generator
- Barcode Scanner
- Bingo Card Generator
- Business Name Generator
- Coin Flip
- Dice Roller
- Giveaway and Raffle Picker
- Lorem Ipsum Generator
- Passphrase Generator
- Password Generator
- Password Strength Checker
- QR Code Generator
- QR Code Reader
- Random Color Generator
- Random Name Picker
- Random Number Generator
- Secret Santa Generator
- Signature Generator
- Team Generator
- Text Encryption Tool
- Username Generator
- Wheel Spinner
- Word Search Generator
- Yes or No Picker
Test your webcam, microphone, keyboard, screen and more.
- Battery Status Checker
- Bluetooth Device Inspector
- Browser Info
- Dead Pixel Test
- Gamepad Tester
- GPU Benchmark (WebGL)
- Keyboard Tester
- Microphone Test
- Mouse Test and Click Speed Test
- Refresh Rate Test
- Screen Color and Uniformity Test
- Screen Recorder
- Screen Resolution Checker
- Serial Port Monitor
- Speaker Test
- Touch Screen Test
- Voice Recorder
- Webcam Photo Booth
- Webcam Test
Tones, tuners, audio cutting and video conversion in your browser.
- Audio Converter
- Audio Cutter
- Audio Spectrum Analyzer
- Audio Speed and Pitch Changer
- BPM Tapper
- Decibel Meter
- Guitar and Ukulele Tuner
- Metronome
- MIDI File Visualizer
- Online Synthesizer
- Subtitle Converter
- Tone Generator
- Video Compressor
- Video Frame Grabber
- Video to GIF
- Video to MP3
- Video Trimmer
- Vocal Remover
- Volume Booster and Normalizer
- White Noise and Ambient Sound Generator
Grades, typing practice, worksheets, conjugation and science helpers.
Quick browser games and brain teasers, free and without sign-up.