Sacnbell
The $0 video doorbell. No hardware, just a QR code.
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Sacnbell - The $0 video doorbell. No hardware, just a QR code.

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Replace expensive hardware & drilling bans with a 100% digital virtual doorbell. Generate a custom QR code, print it, & stick it on your door. When visitors scan it, it rings your devices & launches a real-time WebRTC audio/video call. No apps required!

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Hey Product Hunt! 👋 I’m the creator of scanBell. The idea came out of pure frustration: I wanted a smart doorbell but couldn't justify spending $200 on physical hardware, dealing with battery recharging, or drilling holes into a rental property wall. I realized almost every single visitor carries a smartphone with a web browser. Why not leverage that instead of buying heavy plastic devices? So, I built scanBell. It uses a high-performance FastAPI backend handling an ultra-low latency in-memory WebRTC signaling relay, paired with a clean React frontend and a Flutter app for instant native push notifications. The best part? Your visitors don't have to download a single thing to ring your bell—it all runs seamlessly in their native mobile browser. It's completely free to set up and try at scanbell.pages.dev. I would love to hear your thoughts, feedback, or any edge-case feature requests you want me to add to the roadmap! What features should I build next?