runs locally in your browser
JWT Decoder
Decode a JWT to read its header and claims, with human-readable issued/expiry times. Decoding happens locally in your browser.
Decoding only, the signature is not verified. The token never leaves your browser.
header
payload
more developer utilities
JSON Formatter & Validator
Beautify, minify and validate JSON with clear error messages.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text (UTF-8 safe).
URL Encode / Decode
Percent-encode or decode URLs and query strings.
Password Generator
Generate strong, random passwords with the options you need.