Tool
JWT Decoder
Decode and inspect JWT tokens safely in your browser.
JWT Token Input
About JWT Decoder
What is a JWT?
JSON Web Tokens (JWT) are used for authentication and information exchange. They consist of a header, payload and signature.
Use Cases
Perfect for developers who want to quickly inspect JWT tokens while debugging OAuth flows, API authentication or SSO implementations.
100% Client-Side
Privacy-first: Your token never leaves your browser. All decoding happens completely locally. Safe to use with production tokens.