JWT Decoder
Decode and inspect JWT tokens instantly. Verify signatures, check expiry, and understand every claim — no guesswork.
Debug auth tokens, inspect claims, and quickly confirm whether a token is expired or signed as expected.
What to expectPaste a JWT to instantly see its header, payload, signature details, and token lifecycle. Add a shared secret to verify HS* signatures.
Good to knowThis helps with inspection and verification, but it does not mint, refresh, or revoke tokens.
Paste a token to decode
Header details appear here after a valid JWT is entered.
Payload appears here
Paste a valid token to inspect claims and expiry.
Signature info appears here
Paste a valid token to inspect verification details.
How to use this tool
Paste a JWT token to decode header, payload, and signature. Optionally enter the secret to verify the signature. Expiry and standard claims are shown with human-readable labels.