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Decode JWT header and payload quickly for debugging auth flows.
JWT Token
Enter a valid JWT token.
JWT Decoder helps you complete this task in seconds directly in the browser without installing extra software.
Decode JWT tokens online to inspect payload claims, expiry times, and token structure while troubleshooting authentication.
Paste your JWT token in the input area.
The tool decodes header and payload as readable JSON.
Check exp, iat, sub, role, and custom claims quickly.
JWT Decoder runs entirely in your browser: it takes your input, processes it on your device, and returns the result instantly — nothing is uploaded to a server. Decode JWT header and payload quickly for debugging auth flows.
No. It decodes token parts for inspection but does not cryptographically verify signatures.
Yes. Expired tokens can still be decoded to inspect claims.