JWT Decoder & Inspector - JSON Web Token Tools
Decode JSON Web Tokens instantly to inspect headers, payload claims, and verify expiration. Analyze your JWT authentication tokens with our secure browser-based decoder.
Enter JWT Token
About JWT
JSON Web Tokens (JWT) are an open standard (RFC 7519) for securely transmitting information between parties as a JSON object.
JWTs consist of three parts separated by dots (.):
- Header - Contains the token type and the signing algorithm being used
- Payload - Contains the claims (data)
- Signature - Used to verify the sender and ensure the message was not changed
Common use cases include authentication, information exchange, and authorization.