Decode and inspect the header, payload, and signature of any JSON Web Token (JWT).
Debugging authentication tokens? The Free JWT Decoder is the perfect tool for developers. It's the Best JWT Decoder to securely decode jwt token online. It reads payloads and headers entirely client-side, ensuring your tokens stay private.
No, this tool only decodes the Base64 payload so you can read the contents. It does not cryptographically verify the signature against a secret.
Yes! Our tool decodes the token entirely in your local browser using Javascript. No tokens are sent to any external server.
The third part is the cryptographic signature. It is binary data representing the hash, not readable text.
The "exp" claim represents the expiration time of the token, usually written as a Unix Timestamp.
No, it only decodes the Base64 header and payload. It does not validate the secret key.
Yes, all decoding happens locally in your browser so your token is never compromised.
Yes, the 'exp' claim is decoded and displayed in standard readable format.
Yes, this free jwt decoder is available for all developers.
Yes, the best jwt decoder runs purely in the browser, meaning your tokens are never logged.