JWT Debugger
Features
Instant JWT decoding
Header and payload parsing
Signature verification
Token generation
Multiple algorithms support
Error validation
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FAQ
A JSON Web Token (JWT) is a compact, URL-safe means of representing claims between two parties. It's commonly used for authentication and information exchange in web development.
Simply paste your JWT token into the input field, and the tool will automatically decode the header and payload sections. You can also verify the signature by providing the secret key.
When decoded, you can see the header (which contains the algorithm type), the payload (which contains the claims/data), and verify the signature if you have the secret key.