JWT Decoder

Header


                            

Payload


                            

Signature


                            

What is a JSON Web Token (JWT)?

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. JWTs consist of three parts: Header, Payload, and Signature, each encoded in Base64url and separated by dots (.). They are commonly used for authentication, authorization, and information exchange in web applications.
Read more on Wikipedia

How to use this tool

  1. Paste your JWT: Enter or paste your JWT string into the input box above.
  2. Automatic decoding: The tool will automatically split and decode the Header, Payload, and Signature.
  3. Validity check: Instantly see if your JWT is well-formed and valid.
  4. Copy feature: Easily copy the contents of each section with a single click.