Binary ↔ Text
Convert readable text into binary and back again. Hexadecimal, decimal and octal views are produced at the same time, so […]
Color Converter
Pick a colour once and read it in every format designers and developers need: HEX, RGB, HSL, HSV and CMYK,
JSON Formatter
Paste messy JSON and get it back readable, minified or validated. Errors are reported with the exact line and column
URL Encode / Decode
Percent-encode text so it survives inside a web address, or decode an encoded link back into something readable. Includes a
Base64 Encode / Decode
Encode text or a whole file to Base64, and decode Base64 back to readable text. Unicode is handled correctly, and
UUID Generator
Create RFC 4122 identifiers for databases, API keys, test fixtures and log correlation. Version 4 UUIDs use your browser’s secure
Hash Generator
Produce cryptographic checksums for text or for a file on your device. Use them to verify downloads, compare backups or
QR Code Generator
Turn a link, message, phone number or Wi-Fi login into a scannable QR code, then download it as a PNG.
Password Generator
Build strong, unpredictable passwords using your browser’s cryptographic random number generator. Nothing is sent anywhere and nothing is stored. Length:
Keyword Density & Word Frequency
See which words dominate your text. Useful for keyword density checks, editing out repetition and spotting filler words before you