I Built a Browser-Based P2P File Transfer Tool Using WebRTC (No Server Upload)

Most file transfer tools on the internet work the same way: Upload the file to a server The server stores it The other user downloads it This works fine, but it has some downsides: Files are temporarily stored on a server Upload time can be slow for large files It consumes server bandwidth So I wanted to experiment with something different. I built a browser-based peer-to-peer file transfer tool using WebRTC . No server storage. No upload step. Just direct browser-to-browser transfer . 💡 The Idea Instead of uploading files to a server, the browsers connect directly to each other . The file is transferred peer-to-peer using WebRTC. Browser A ←→ WebRTC ←→ Browser B This means: No server upload No server storage Direct encrypted connection Faster transfer for many cases Everything happens inside the browser . ⚙️ How It Works The tool uses WebRTC DataChannels to establish a peer-to-peer connection between two users. The process is simple: User A opens the tool and creates a session A sessi