PairDrop is a cross-platform file sharing application and web-based tool for peer-to-peer data exchange. It enables the transfer of files and text messages between devices using a browser, operating without the need for user accounts or central storage.
The project supports both local network file transfers and cross-device sharing over the internet. It provides methods for establishing connectivity through temporary rooms using shared short-codes, QR-code identity exchange, and persistent device pairing to maintain connections across different networks.
Connectivity is managed via WebRTC peer-to-peer networking, allowing data to move directly between devices. The application also integrates with native operating system share menus and command-line interfaces for data export.