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JWT Decoder & Token Inspector
Decode JSON Web Tokens instantly to inspect headers, payload claims, and expiration dates without sending tokens to any server.
Encoded JWT Token
Paste your Bearer or OAuth JWT token string below
Decoded Claims
Inspected header and payload contents
Paste a valid JWT token to inspect claims
Frequently Asked Questions
Is my JWT token stored or uploaded anywhere?
No. All decoding and inspection happens entirely within your web browser using JavaScript. No network calls or server logging take place.
Can this tool verify the JWT signature?
This tool decodes payload and header claims. Signature verification requires secret keys or public certs, which should never be pasted online.