JWT Decoder

Decode and analyze JWT tokens. JWT (JSON Web Token) is a standard method for securely transmitting authentication information, consisting of three parts: Header, Payload, and Signature. Instantly view the contents of encrypted tokens to analyze user information, permissions, expiration time, and debug API authentication issues.

1. Paste the JWT token to decode into the input area
2. Click "Decode" to parse the token content
3. Header: View algorithm and token type information
4. Payload: View user information, issue/expiration time, and other data
5. Signature: the signing data used to verify the token