JWT Decoder
About this tool: Decode and inspect JSON Web Tokens (JWT) to view their contents and validate their signatures. JWT is a compact, URL-safe means of representing claims between two parties.
How to use:
- Paste a JWT token in the input field
- Click “Decode” to view the token’s header and payload
- Optionally, enter a secret key to verify the token’s signature
- The tool will show you if the token is valid and when it expires
