JWT Decoder

💡 Tips:

• Token Structure: JWT has 3 parts: header.payload.signature (separated by dots)
• Header Analysis: Check algorithm (alg) and token type (typ) in the header
• Payload Claims: Look for standard claims like sub, iat, exp, iss, aud
• Expiry Check: Monitor exp (expiration) and iat (issued at) timestamps
• Copy Sections: Copy individual header, payload, or signature as needed
• Debugging: Use this tool to understand token structure and claims
• Security Note: JWTs are signed, not encrypted - anyone can decode them
• Server Validation: Always validate JWT signature on the server side
• Privacy First: All JWT decoding happens locally in your browser - your tokens stay private