JWT Decoder
Decode JSON Web Tokens (JWT) to inspect the header, payload, and signature. No server-side processing.
Frequently Asked Questions
What is a JWT token?
JWT (JSON Web Token) is a compact, URL-safe token format used for securely transmitting information between parties as a JSON object.
Is it safe to decode JWT here?
Yes, all decoding happens in your browser. Your token is never sent to any server.
Does this verify the signature?
This tool decodes and displays the token contents but does not verify the cryptographic signature, which requires the secret key.