JWT.io
Developer Tools
JWT.io, maintained by Auth0, decodes JSON Web Tokens so you can inspect headers, payloads, and signatures — a staple of every web developer's toolbox.
How to install it as an app
- Open jwt.io in Chrome or Edge.
- Click the install icon in the address bar (or menu → “Install app”).
- Open the app in Chrome on Android.
- Tap the ⋮ menu → “Add to Home screen” or “Install app”.
- Open the app in Safari on iOS.
- Tap the Share button → “Add to Home Screen”.
What the community says