JWT Decoder

Decode and verify JSON Web Tokens (JWT) and inspect their contents.

Information

Decode and inspect JSON Web Tokens (JWT). View the header, payload, and verify the signature. Essential for debugging authentication systems and understanding token-based security.

How to Use

  1. Paste your JWT token into the input field
  2. Click the "Decode JWT" button to analyze the token
  3. View the decoded header, payload, and signature

Note: This tool only decodes JWTs and does not validate signatures. For security-critical applications, always verify JWT signatures on the server side.