JWT Decoder
FreeDecode a JSON Web Token to read its header, claims and expiry time. Decoding happens locally, so tokens are not transmitted.
How to use JWT Decoder
- 1Paste a JWT.
- 2Read the decoded header and payload.
- 3Check the issued and expiry times.
Private by design. This tool runs in your browser. Nothing you enter or add is uploaded.
Frequently asked questions
Does this verify the signature?
No. It only decodes the token. Never trust the contents of a token whose signature has not been verified by your server.
Is it safe to paste a production token?
The token stays in your browser, but treat live tokens as secrets anyway and prefer expired or test tokens when debugging.
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