Connectivity Software Downloads: 236 Free and Open-Source Connectivity Tools

Connectivity software gets two machines talking: remote desktop and remote control (VNC and RDP clients), LAN and cross-device file transfer, folder sync and backup, SSH and port forwarding, plus Bluetooth and serial-port utilities. Check the protocol and platform first; for remote desktop prefer clipboard and drag-and-drop support, for transfer tools see whether they connect directly over the LAN, and for sync tools look at conflict handling and incremental copies. Many here are portable and run straight from a USB stick.