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 10.9
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Latest News

Feb 10, 2019
FreeFileSync 10.9 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

Excellent product! Backing up my digital photo collection is trivial, even as I move folders around, change photo ratings, etc.
patricknbowman
This program is excellent. I have been using it between 2 computers for 3 weeks and no issues. I was using SyncToy for a few years with few problems, but recently SyncToy began to delete the newer files, some of which I spent hours writing. Thankfully I found FreeFileSync and it is working perfectly.
oid-3857101
Easy to use and works exactly as I need.
kaffeinatedneil
I don't use this very often but it is what I need when I need it :-) Thank you for making this utility available.
Linda Greene