JWT Decoder
Decode JWT header and payload claims.
How to use the JWT Decoder
- 1 Paste your JWT (the three dot-separated parts).
- 2 Read the decoded header and payload.
- 3 Check expiry (exp) and issued-at (iat) as readable dates.
Frequently asked questions
Does this verify the token signature?
No. It decodes the header and payload only. Decoding never requires the secret, and your token is processed locally and never sent anywhere.
Is it safe to paste a real token here?
Decoding happens entirely in your browser. Still, treat live tokens carefully and avoid pasting production secrets into any web tool.
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