Decode and inspect JWT tokens to view header, payload, and expiration information
Warning: This tool only decodes JWTs. It does NOT verify signatures. Always verify JWT signatures on your server for security.
Copy your JWT token and paste it into the input field. The token should have three parts separated by dots.
Click the decode button to extract and display the header, payload, and signature components.
View the decoded information, check expiration status, and copy individual sections as needed.
JWT (JSON Web Token) is a compact, URL-safe token format used for securely transmitting information between parties. It consists of three parts: header, payload, and signature, separated by dots.
No, this tool only decodes and displays the contents of the JWT. It does NOT verify the signature. For security purposes, always verify JWT signatures on your server.
Yes! All decoding happens locally in your browser. The JWT data never leaves your device. However, be cautious about decoding tokens containing sensitive information on shared computers.
The payload typically contains claims about the user and additional metadata like expiration time (exp), issued at time (iat), issuer (iss), and custom data relevant to your application.
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