JWT Decoder

Token
How to use
  1. 1.

    Paste a JWT token into the input field

  2. 2.

    The header, payload, and all claims are decoded and displayed instantly

  3. 3.

    Check the expiry time to see if the token is still valid

Common uses
  • Debugging authentication issues by inspecting token claims

  • Checking token expiry during development without decoding it in code

  • Verifying the algorithm and claims structure of a token

A JSON Web Token (JWT) has three Base64-encoded parts separated by dots: header, payload, and signature. This tool decodes the header and payload only — the signature is not verified, so do not use this to validate token authenticity.