All free tools
Pick a tool. No file is sent over the Internet.
| Tool | Category | Processing |
|---|---|---|
| Test your microphone onlineLive sound level, recording and playback for your microphone. | Device tests | In your browser |
| Test your webcam onlineCamera preview, real resolution and measured frames per second. | Device tests | In your browser |
| Test your speakers and headphonesLeft, right and centre sounds to check speakers and headphones. | Device tests | In your browser |
| Test your keyboard onlineVirtual keyboard that lights up, dead keys and key rollover. | Device tests | In your browser |
| Test your mouse onlineClick counter, unwanted double-click detection and scroll wheel. | Device tests | In your browser |
| Test your touch screenGrid to paint with your finger and number of fingers detected. | Device tests | In your browser |
| Dead pixel testSolid full-screen colours to find dead and stuck pixels. | Device tests | In your browser |
| What is my IP address?Your public IP address, its version and detected country. | Device tests | In your browser |
| Internet speed testPing, download and upload speed of your connection. | Device tests | In your browser |
| My device informationSystem, browser, screen, CPU, memory and graphics card. | Device tests | In your browser |
| Compress an imageShrink JPG, PNG and WebP photos with a before/after comparison. | Images | In your browser |
| Resize an imageChange the size, crop to any ratio and rotate. | Images | In your browser |
| Convert an imageBatch image conversion between JPG, PNG and WebP. | Images | In your browser |
| Convert HEIC to JPGTurn iPhone HEIC photos into JPG files that open everywhere. | Images | In your browser |
| Merge PDF filesCombine several PDFs into one, in the order you choose. | In your browser | |
| Split a PDFExtract pages or split a PDF into one file per page. | In your browser | |
| Convert images to PDFPut photos and screenshots into a single PDF. | In your browser | |
| QR code generatorQR code for a link or text, as PNG or SVG. | Utilities | In your browser |
| Password generatorStrong random passwords, never stored. | Utilities | In your browser |
| Word counterWords, characters, reading time and frequency. | Productivity | In your browser |
| Text case converter12 conversions: UPPER, camelCase, snake_case… | Productivity | In your browser |
| Lorem ipsum generatorPlaceholder text in plain text, HTML or Markdown. | Productivity | In your browser |
| Readability checkerFlesch, Flesch-Kincaid and Gunning Fog scores. | Productivity | In your browser |
| Online notepadColour-coded notes saved in your browser. | Productivity | In your browser |
| Habit trackerStreaks and records, no account. | Productivity | In your browser |
| Tip calculatorTip and each person's share. | Productivity | In your browser |
| Expense splitterWho owes whom, in few transfers. | Productivity | In your browser |
| Random pickerRandom winners or balanced teams. | Productivity | In your browser |
| Flip a coin3D coin, statistics and history. | Productivity | In your browser |
| Spin the wheelAdd choices, spin, get a winner. | Productivity | In your browser |
| Typing speed testWords per minute and accuracy. | Productivity | In your browser |
| Text to speechText read aloud, choice of voice. | Productivity | In your browser |
| Speech to textYour voice transcribed, 14 languages. | Productivity | In your browser |
| White noise generatorWhite, pink, brown noise and binaural beats. | Productivity | In your browser |
| Morse code translatorText ↔ Morse, with audio playback. | Productivity | In your browser |
| JSON formatterFormat, validate and minify JSON. | Developer | In your browser |
| Base64 encoder and decoderText ↔ Base64, UTF-8 and URL-safe. | Developer | In your browser |
| URL encoder and decoderEncode and decode %20 in URLs. | Developer | In your browser |
| UUID generatorRandom v4 UUIDs, up to 500 at once. | Developer | In your browser |
| Hash generator (SHA)SHA hashes of text or a file. | Developer | In your browser |
| JWT decoderRead a JWT's header, payload and expiry. | Developer | In your browser |
| Regex testerTest a regex with live highlighting. | Developer | In your browser |
| Unix timestamp converterUnix timestamp ↔ readable date. | Developer | In your browser |
| Colour converterHEX ↔ RGB ↔ HSL and WCAG contrast. | Developer | In your browser |
| Compare two textsLine-by-line diff of two texts. | Developer | In your browser |