Freefilesync folder comparison and synchronization software

        FreeFileSync Is an open source software for folder comparison and synchronization ,FreeFileSync It is essentially a software for folder comparison and synchronization , It can create and manage backup copies of all important files .FreeFileSync Not every file is copied every time , Instead, determine the difference between the source folder and the target folder , And only transmit the minimum amount of data required , Apply to Windows、macOS and Linux.

Reference resources ：

FreeFileSync: Open Source File Synchronization & Backup Software