
I Built a Chat App With No Server (Just WebRTC)
I Built a Serverless P2P Chat That Runs Directly in Your Browser Most chat applications work like this: User A → Server → User B Every message goes through a server. This works well, but it also means: Messages pass through a central server The server must handle all traffic It requires backend infrastructure So I wanted to try something different. I built a peer-to-peer chat tool that runs entirely in the browser. No accounts. No installation. No chat server. Just open the page and start chatting. Try it here: 👉 https://xto.icu/tools/p2p-chat/ The Idea Instead of sending messages through a server, the browsers connect directly to each other. Browser A ←→ WebRTC ←→ Browser B Once the connection is established, messages travel directly between the two users. No message storage. No central chat server. This is possible thanks to WebRTC, a browser technology designed for real-time communication. WebRTC allows browsers to exchange data directly using RTCDataChannel, which supports low-late
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