JWT Decoder

Decode and inspect JSON Web Tokens (JWT) instantly.

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Why use this tool?

Easily view the header, payload, and signature of any JSON Web Token. This tool is essential for debugging authentication issues and verifying token claims.

How it works:

Paste your JWT string to see the header and payload data formatted clearly.

Frequently Asked Questions

Is my token safe?

Yes, tokens are decoded entirely in your browser. Sensitive information is never sent to our servers.

Can it verify the signature?

This tool is for viewing content. To verify a signature, you should use your application backend with a secret key.

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