Encoding Utility

JWT Decoder

Decode a JSON Web Token header and payload locally in your browser. Inspect claims, expiration timestamps, and Base64URL segments without sending the token to a server.

JWT input

Decoding a JWT is not authentication. A decoded token can be expired, forged, or unsigned unless your application verifies the signature with the correct key.

Header JSON

Payload JSON

Detailed guide

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Read the JWT Decoder guide