JWT Decoder

Decode and inspect JSON Web Tokens (JWT) with our secure, advanced, and user-friendly online tool. Analyze headers, payloads, and signatures to understand token structure and content. Ideal for developers, security professionals, and API integrators.

Our JWT Decoder supports a wide range of algorithms including HS256, HS384, HS512, RS256, RS384, RS512, ES256, ES384, and ES512. Verify signatures using HMAC, RSA, or ECDSA keys, and check for potential vulnerabilities in your tokens. The tool also allows for custom claims validation, header and payload editing, and batch decoding of multiple tokens.

With features like token history, claim analysis, and vulnerability scanning, our JWT Decoder provides a comprehensive solution for working with JSON Web Tokens. Whether you're debugging an API, securing your application, or learning about JWTs, this tool offers the insights you need in a simple and intuitive interface.