Developer Utility Tools

JWT Decoder

Decode and analyze JWT tokens. View payload data and check token validity.

Header

No token decoded yet

Payload

No token decoded yet

About JWT Tokens

JWT (JSON Web Token) is a compact, self-contained way to transmit information between parties as a JSON object. It's commonly used for authentication and authorization in APIs.

A JWT consists of three parts separated by dots: header (algorithm info), payload (claims), and signature (verification). This tool decodes and displays all three parts for inspection.