JWT Decoder
Decode JWT header and payload locally in your browser. This tool does not verify signatures.
JWT
Paste a JWT to decode.
Related tools
JWT BuilderCrypto
Build and sign JWT tokens with HS256 using WebCrypto, entirely in your browser.
JWT Expiry CheckerCrypto
Check JWT token expiration and decode payload without verification.
Password GeneratorCrypto
Generate strong passwords locally in your browser.
Passphrase GeneratorCrypto
Generate secure passphrases from a word list with entropy calculation, locally in your browser.
Password Strength CheckerCrypto
Estimate password strength locally; no network requests.
Entropy CalculatorCrypto
Calculate password and passphrase entropy in bits with time-to-crack estimates.