FreeFileSync - Open Source File Synchronization

Open Source File Synchronization
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Synchronize Files and Folders

Key features
Press release
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, Linux and macOS.

 

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FreeFileSync 9.6

Latest News

Dec 7, 2017: FreeFileSync 9.6 has been released!
 
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User Reviews

Thumbs up godlymusic reviewed FreeFileSync:

Excellent, efficient tool for manual backup and folder mirroring. No persistent services. Does what it promises and is updated frequently. Takes advantage of multicore now. A big thanks to the developers.

Thumbs up DG reviewed FreeFileSync:

Favourite tool I have used. Thanks so much. Makes keeping my USB stick and google drive in perfect sync.

Thumbs up tsreyb reviewed FreeFileSync:

Wow! FreeFileSync is the best backup tool I've ever used! I've bounced back and forth between many tools over the years, and this one is so much simpler (without sacrificing functionality) in so many ways. The backup process is quick and reliable.

Thumbs up akya reviewed FreeFileSync:

Probably the best open source software that I have ever encountered. :) Keep up the good work!
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