GoodSync - GoodSync provides highly reliable file backup and synchronization for both individuals and businesses.
Digionica SyncTool - Digionica SyncTool is a useful utility that has been designed for synchronizing files and folders in numerous computers on the net, on local storage, and on servers.
Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
arRsync - arRsync is a tool that is designed for macOS that is used for transferring and synchronizing files between a computer and a storage drive.
MirrorFolder - MirrorFolder is a real-time folder synchronization and backup software
Truck - A faster alternative to FTP