FreeFileSync Open Source File Synchronization

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Synchronize Files and Folders

Key features
FreeFileSync is a folder comparison and synchronization software that creates and manages backup copies of all your important files. Instead of copying every file every time, FreeFileSync determines the differences between a source and a target folder and transfers only the minimum amount of data needed. FreeFileSync is Open Source software, available for Windows, macOS, and Linux.
 
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FreeFileSync 10.10
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Latest News

Mar 10, 2019
FreeFileSync 10.10 has been released!
Jan 26, 2019
Synchronize files with Google Drive
Jul 16, 2018
Parallel file copy and ad-free installer
Jun 11, 2017
FreeFileSync Video Tutorials available
May 24, 2017
FreeFileSync adds Support for FTP and FTPS
 
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User Reviews

It is very easy and works over network, local drives and external ones. A must-have if you use more than a computer and huge files make cloud drives an unfeasible option.
piterdias
Much better than Microsoft Briefcase to which I held on for much too long. Thanks for your work.
Annette Maier
Excellent sync software; replaced SyncToy with this when I realised that SyncToy had gradually wiped rather than backed up my files. Works well; can't believe how much quicker it is!
Simon
It's a very good program! Very useful! Thank you for creating this program. From South Korea
Kim Han