About JWT Decoder

The JWT Decoder lets you inspect and validate JSON Web Tokens. Instantly view the header, payload, and signature for debugging and security checks.

• What is a JWT? A JSON Web Token is a compact, URL safe way to represent claims between two parties.
• How does it work? Paste your JWT and click 'Decode' to see its contents and verify its structure.
• Why use it? JWTs are widely used for authentication and authorization in web apps and APIs.

All decoding happens locally in your browser, your data never leaves your device.