JSON Web Token (JWT) Decoder
Instantly decode any JSON Web Token. View user data and expiry claims without sharing secrets. Secure and fast.
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About JSON Web Token (JWT) Decoder
Our JWT Decoder is an essential tool for developers working with modern authentication systems. JSON Web Tokens are the standard for secure data transmission in web apps, but their encoded format is unreadable. This tool allows you to instantly decode any JWT to see its header and payload data without needing the secret key. It's an invaluable utility for debugging authentication flows, checking token expiration, and verifying user claims in your REST API debugging process.
How to Use JSON Web Token (JWT) Decoder
Paste Your JWT
Enter the encoded JSON Web Token into the input field.
Inspect Parts
The tool automatically splits the token into its Header, Payload, and Signature sections.
Analyze Claims
Review the decoded JSON data to see user IDs, roles, expiration times, and other claims.