JWT Decoder

Decode and inspect JSON Web Token (JWT) headers and payloads instantly.

Encoded JWT Token

About JWT Decoder

JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. Our online JWT Decoder parses token header and payload claims directly in your browser without sending tokens to any remote server.

Frequently Asked Questions

Is it safe to paste my JWT token here?

Yes, all decoding is performed locally inside your browser using client-side JavaScript. Tokens are never uploaded or stored anywhere.

Can this tool verify the JWT signature?

This tool decodes and displays the header and payload data. Signature verification requires validating secret keys or public certs on your server or authentication provider.