Onionshare - OnionShare lets you securely and anonymously share a file of any size with someone.
Warpinator - Share files across the LAN. Contribute to linuxmint/warpinator development by creating an account on GitHub.
ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC
SECuRET ProCam - SECuRET ProCam is one of the smart cameras that starts recording as it detects motion in the frame.
Send Anywhere - Send whatever you want, wherever you want
LanXchange - A simple tool for spontaneous, local network file transfers.