QBQBCOO Tools

Online JWT Decoder

Decode JWT tokens to view Header and Payload content, with automatic expiration detection. All client-side — your tokens are never uploaded.

Decode only — signature is not verified.

Enter content and click a button to see results

About the JWT Decoder

What is JWT?

JWT (JSON Web Token) is a compact, URL-safe token format for securely transmitting information between parties. A JWT consists of three parts: Header (algorithm info), Payload (data claims), and Signature (verification). It is widely used for authentication and information exchange in web applications.