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JWT Decoder

Decode JSON Web Tokens to view Header and Payload content.

Tool Guide

What is JWT Decoder?

Decode JSON Web Tokens to view Header and Payload content.

How to use?

  1. Paste Token: Enter the long JWT string returned from login APIs.
  2. Deconstruct: Breaks it into Header (red), Payload (purple), and Signature (blue).
  3. View Payload: Read plaintext core info like User IDs, roles, and expiration dates.

Use Cases

Auth Debugging

Troubleshoot token expiration or permission errors by verifying the actual identity fields encoded inside.