JWT Decoder

Decode and inspect JSON Web Tokens (JWT) to view the header, payload, and signature. This tool helps developers debug JWT tokens, understand their structure, and verify token contents without needing to write code.

Frequently Asked Questions

How do I decode a JWT token?

Paste your JWT token into the input field. The tool will automatically decode and display the header, payload, and signature information.

What information does the decoder show?

The decoder displays the JWT header (algorithm, token type), payload (claims, data), and signature verification status.

Is my JWT token secure?

Yes, all decoding happens in your browser. Your tokens never leave your device, ensuring complete privacy and security.