Developer Builds Browser-Based P2P File Transfer Tool Using WebRTC, No Install Needed

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A developer named Upendra Dasanayaka has built FluX, an open-source peer-to-peer file transfer tool that runs entirely in the browser without requiring any software installation. The tool uses WebRTC data channels to send files directly between two browsers over a local network, bypassing cloud storage and its associated upload limits and bandwidth costs. To handle large files without crashing browser tabs, FluX leverages the File System Access API to stream incoming data chunks directly to disk rather than loading them into memory. A custom backpressure management system monitors WebRTC buffer levels to prevent packet drops during high-speed transfers. The project is publicly available on GitHub and hosted on Vercel for anyone to try.

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