JWT
Decode
Base64
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JWT Decoder
JWT Decoder
Inspect JWT header and payload without uploading tokens.
JWT
Decode
Header
Payload
How to use
Paste a JWT (three base64url parts separated by dots).
Click Decode.
Review header and payload JSON. Signature is not verified.
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Sites that do this well
1. jwt.io Debugger
jwt.io
2. Auth0 JWT Handbook
auth0.com
3. RFC 7519
datatracker.ietf.org