Utilities
Small tools for daily dev work - UUIDs, JWTs, hashes, timestamps. Everything runs client-side in your browser; nothing is sent to a server.
UUID Generator
Generate v4 UUIDs, one at a time or in bulk.
JWT Decoder
Decode a JWT’s header and payload. Runs entirely in your browser — nothing is sent anywhere.
Base64 Encode / Decode
Convert text to and from Base64.
URL Encoder / Decoder
Percent-encode or decode a URL or query string.
JSON Formatter & Validator
Pretty-print, minify, and validate JSON.
Hash Generator
Generate SHA-1, SHA-256, or SHA-512 hashes of text.
Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Color Converter
Convert colors between HEX, RGB, and HSL.
Regex Tester
Test a regular expression against sample text, with matches highlighted.