Developer Tools
Online developer utilities that run in your browser: Base64 and URL encoding, a regex tester, a JWT decoder, and UUID and hash generators — handy for quick encoding, debugging and testing without installing anything.
Base64
Encode and decode Base64 in the browser. UTF-8 safe, URL-safe variant, file uploads. Auto-detect direction. Free.
URL Encoder
Encode and decode URL strings in the browser. Component vs full-URL mode, + for space, auto-detect. Free.
Regex Tester
Test JavaScript regular expressions in the browser. Highlight matches, see groups, preview replacement. Free.
JWT Decoder
Decode and inspect JSON Web Tokens in the browser. Header, payload, expiry, claims explained. No signing. Free.
UUID Generator
Generate UUID v4 (random), v7 (time-ordered), v1 (timestamp) or Nil UUIDs in your browser. Bulk, formatted, validated. Free.
Hash Generator
Calculate MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 hashes for text or files in your browser. HMAC, hex or base64.
Hash Identifier
Identify the algorithm behind any hash: MD5, SHA-256, bcrypt, Argon2, NTLM and 50+ more. Ranked matches with hashcat & John modes. Free.
