JWT Decoder
Paste a JWT to read its header and payload. We never send the token and we do not verify signatures.
Decode only. Signature is not verified.
Header
Payload
How to decode a JWT
- Paste the token.
- Read header and payload.
- Treat signature as unverified.
Frequently asked questions
Do you verify the signature?
No. Decoding is not authentication.
Is the token uploaded?
No. Never paste a production token into a page you do not trust — including this one if you are unsure.
Expired?
We show the exp claim as a date if present.
Encrypted JWE?
Not supported. This is JWS-style three-part tokens.
Free?
Yes.
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