Warpinator is a free, open-source file-sharing tool designed to make transfers between devices on the same local network simple and direct. Originally created for Linux Mint, it helps users discover and connect to other devices running the software, then share files and folders through an intuitive interface with drag-and-drop functionality. Transfers take place peer to peer over the local network, so an internet connection or external server is not required. The software supports multiple connected devices and is intended for sharing both individual files and groups of files, without complex setup.

Warpinator is primarily associated with Linux and is also presented for Windows, with separate 32-bit and 64-bit downloads for sharing between Windows and Linux computers. The site additionally describes Android and iOS editions for transfers involving mobile devices, though it identifies the Android offering as unofficial in one section. Warpinator emphasizes encrypted, secure transfers and privacy, stating that it does not keep transfer logs or history.