JWT Decoder & Analyzer
Paste a JWT, decode its contents, check claims, and optionally verify the signature.
Demo: Valid HS256
Demo: Expired Token
Demo: alg=none
JWT
Shared Secret (for HS256/384/512)
(optional)
Public Key (for RS256/384/512)
(optional)
Decode & Analyze
Clear
Tip: For HMAC tokens, enter the shared secret. For RSA tokens, paste the PEM public key to verify.