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, Linux and macOS.
 
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FreeFileSync 10.4
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Latest News

Sep 9, 2018
FreeFileSync 10.4 has been released!
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, works like a charm. I was long looking for something like that to keep two large HD identical.
Olivier Lengwiler
Excellent and portable. It's my favorite solution to sync my devices and make backups. Useful options and intuitive interface. I just have created this account to say thanks to the author.
jslopezg
Thank you for continually filling a huge gap and for making things possible that were previously only dreams!
Tiziano Riolfo
Excellent software! I love it!
Link Liu