JSON Playground

JWT Debugger - Decode, Verify & Generate Tokens Online

Professional JWT tool. Decode, verify, and generate tokens with HS256, RS256, ES256 support. Visual token highlighting and smart claim analysis.

What you can do on this page

JWT debugger
JWT decoder
JWT verifier
JSON web token
HS256
RS256

Fast, private, browser-based developer tools

JSON Playground provides free utilities for developers, testers, students, and data professionals. Supported operations run in your browser whenever possible, which keeps the experience responsive and helps sensitive input stay on your device. No account is required to start using the tools.