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JWT Decoder
Decode and inspect JWT tokens instantly.
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About This Tool
Decode JSON Web Tokens (JWT) and inspect their header, payload, and signature. Useful for debugging authentication issues in web applications.
❓ Frequently Asked Questions
No, all decoding happens in your browser. Your token is never sent anywhere.
The tool decodes the payload without signature verification. For verification, you need the secret key.
Yes.
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