Free, fast, and private file transfers — directly between browsers.
BigFileDrop is a free, browser-based file transfer service that sends files directly between devices using peer-to-peer (P2P) technology. No file size limits, no uploads to servers, no accounts required.
BigFileDrop uses WebRTC — a modern web standard that enables direct browser-to-browser connections.
A unique link is generated for the sender
The receiver opens the link and connects directly
Files are transferred peer-to-peer, encrypted in transit
Nothing is stored on any server — files go directly between browsers
Built with Next.js, PeerJS, and WebRTC. Connection signaling is handled by a lightweight PeerJS server. Once the P2P connection is established, all data flows directly between peers.