JWT Decoder

Decode JSON Web Tokens (JWT) to view header and payload data

Header

ALGORITHM & TOKEN TYPE
 

Payload

DATA
 

Signature

VERIFY SIGNATURE
...

What is a 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.

Structure

  • Header: Typically consists of two parts: the type of the token, which is JWT, and the signing algorithm being used, such as HMAC SHA256 or RSA.
  • Payload: Contains the claims. Claims are statements about an entity (typically, the user) and additional data.
  • Signature: Used to verify the message wasn't changed along the way.