FCM Push Notification Tester

Configure your Firebase project and test push notifications

Firebase Configuration

Status

Firebase Not initialized

Notifications Permission not requested

Service Worker Not registered

FCM Token

Received Messages

No messages received yet. Send a test notification from your backend using the token above.

Security & Privacy

Your Firebase config stays on your machine. This web app runs entirely in your browser — no data is ever sent to any server other than the direct Firebase API calls required for push messaging. Your configuration and FCM token are stored locally in IndexedDB and never leave your device.

There is no backend, no analytics, no tracking, and no third-party data collection on this page. Everything happens client-side in your browser and its service worker.