Synchronize via SFTP (SSH File Transfer Protocol).
Synchronize MTP devices (Android, iPhone, tablet, digital camera).
Synchronize network shares and local disks.
Features of FreeFileSync To Synchronize Your Files Practically speaking, the only limiting factor for extremely large sync jobs is the amount of free memory available: For each 1 GB of RAM, This file synchronization software can synchronize roughly 1.7 million file pairs at a time. It imposes no artificial limitations on how many files you can sync. It is designed to save your time setting up and running backup jobs while having nice visual feedback along the way. FreeFileSync is a free Open Source software that helps you synchronize files and synchronize folders for Windows, Linux, and Mac OS X.