Security & Privacy Notice
� Educational Purpose Only:
This tool is intended for development, testing, and educational purposes only.
🚫 Never Enter Production Data:
Do NOT use production credentials, API keys, private keys, passwords, or any sensitive data in this online tool.
🛡️ Use Offline Tools for Sensitive Data:
For security-critical applications, use offline, air-gapped environments or locally installed tools.
📖 Verify Results Independently:
Always verify the output of this tool independently before using it in any security-critical context.
🔓 Educational JWT Decoder
Learn about JWT token structure and decoding. For educational development and testing purposes only.
Decoded JWT
Header
Payload
Signature
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⚠️ Security Notice
• Never decode JWTs containing sensitive production data in online tools
• JWT tokens contain sensitive information and should only be decoded in trusted environments
• This tool runs entirely in your browser - no data is sent to any server
• For production debugging, use secure, offline tools or trusted development environments