JWT Decoder
Decode JSON Web Tokens (JWT) to view header, payload, and signature. Ideal for developers and security professionals working with APIs.
Enter JWT
Decoded JWT Output
Enter a JWT to decode
JWT Decoder Tips
General Usage Tips
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Decode JWTs to inspect claims
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Verify token structure before use
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Use for debugging API authentication
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Check token expiration in payload
Practical Applications
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Web Development: Debug JWT-based authentication
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API Testing: Inspect token payloads
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Security: Verify token integrity
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Development: Understand JWT structure
Best Practices
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Ensure valid JWT format (header.payload.signature)
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Do not share sensitive tokens publicly
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Verify token signature separately
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Check payload for expected claims