A demo of the full Web Push flow: the browser generates a subscription signed with the VAPID public key, the backend signs every send with the private key through web-push, and delivery happens via the Service Worker's push event — which is why the notification arrives even with the tab or the browser closed. The demo walks through the three real steps of the flow (permission → device registration → test send) and, being a demo, keeps subscriptions in server memory instead of a database.
The demo is 100% functional — try it now.
Camera, screen recording, and audio recording straight from the browser — capture, encoding, and a custom player, no plugins and no upload.
Real-time voice dictation and text-to-speech playback, straight from the browser — no external API involved. We use your device's native APIs.