Category
Design & Developer
Developer and design utilities that run in your browser.
JSON Formatter & Validator
Format, minify and validate JSON with clear error messages.
Base64 Encoder & Decoder
Encode text to Base64 or decode it back, with full Unicode support.
URL Encoder & Decoder
Percent-encode or decode URLs and query strings.
Hash Generator
Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files.
UUID Generator
Generate random version 4 UUIDs in bulk.
Color Converter & Contrast Checker
Convert colors between HEX, RGB and HSL and check WCAG contrast.
Regex Tester
Test JavaScript regular expressions live, with highlighted matches and groups.
Unix Timestamp Converter
Convert Unix timestamps to readable dates and back.
Text Diff Checker
Compare two texts line by line and see what was added or removed.