JWT Decoder
Decode JSON Web Tokens and inspect header and payload. Runs locally — your token stays private.
Security
100% Free
No Data Stored
Privacy first — your input is processed in real time and never stored on our servers. No sign-up required — open any tool and start working immediately.
Privacy note: JWT decoding happens on the server but your token is never stored. Do not paste production secrets in shared environments.
Header
Payload
Signature
Signature verification requires the secret key and is not performed by this decoder.
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