Security
JWT Decoder
Decode and inspect JSON Web Tokens without verification. Runs on your device — nothing is uploaded, nothing is stored.
JWT Token Input
Paste your JWT token to decode and validate
Validation Status
Enter a JWT token to see validation status
JWT Information
Standard Claims
- iss: Issuer - who created the token
- sub: Subject - who the token is about
- aud: Audience - who the token is for
- exp: Expiration time
- nbf: Not before time
- iat: Issued at time
- jti: JWT ID - unique identifier
Security Notes
- • Never share JWT tokens in public
- • Check expiration times
- • Verify the signature in production
- • Use HTTPS for token transmission
- • Store tokens securely
Related
About JWT Decoder
Decode and inspect JSON Web Tokens without verification.
JWT Decoder is a free tool in the Security Tools category on BrowseryTools. It runs entirely in your browser: what you give it is processed on your own device and is never uploaded to a server, there's no registration, no ads and no watermarks, and it keeps working with no connection once the page has loaded.