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FreeFileSync Icon.png
FreeFileSync 6.7 running on Windows 8.1
FreeFileSync 6.7 running on Windows 8.1
Initial releaseAugust 2008; 11 years ago (2008-08)
Stable release
10.15 / August 15, 2019; 24 days ago (2019-08-15)[1]
Operating systemWindows, Linux, macOS
PlatformIA-32, x86-64
TypeFile synchronization utility
LicenseGNU GPLv3

FreeFileSync is a free and open-source program used for file synchronization. It is available on Windows, Linux and OS X. The project is backed by donations. Donors get a few additional features such as an auto-updater, parallel sync, portable version, and silent installation.[2]

FreeFileSync works by comparing one or multiple folders on their content, date or file size and subsequently synchronizing the content according to user-defined settings. In addition to supporting local file systems and network shares, FreeFileSync is able to sync to FTP, FTPS, SFTP and MTP devices.


Earlier versions were packaged with OpenCandy,[3][4] an adware module which many antivirus software vendors classify as malware.[5][6][7][8]

Since the release of version 10.0 in April 2018, the software is ad-free.[9] As of 13 November 2018 Norton considers FreeFileSync installer as a malware and blocks its installation.[10]

Supported OS[edit]

Latest release compatible with Mac OS X 10.7.5 is FreeFileSync_8.4_Mac_OS_X

Reception[edit] staff praised the software quoting that it is the best software by far in the business.[11]

See also[edit]


  1. ^
  2. ^ "FAQ: Donation Edition".
  3. ^ Akerlund, Geoff (10 March 2014), FreeFileSync comes bundled with the OpenCandy malware, and there’s no option to not install it., Backup Review, retrieved 2 February 2018
  4. ^ Richards, Gizmo (16 April 2017), Controversial Advertising Program Now Being Embedded in More Software, Tech Support Alert, retrieved 2 February 2018
  5. ^ PUP.Optional.OpenCandy, Malwarebytes, retrieved 3 February 2018
  6. ^ OpenCandy, Sophos, retrieved 3 February 2018
  7. ^ ADW_OPENCANDY, Trend Micro, retrieved 3 February 2018
  8. ^ Virustotal analyses of OpenCandy, Virus Total, retrieved 3 February 2018
  9. ^ Brinkmann, Martin (3 May 2018). "FreeFileSync 10.0 updates removes ads from installer". Retrieved 30 May 2018.
  10. ^ "My virus scanner/firewall shows a scary warning. Is there a virus, malware, or trojan?".
  11. ^ "FreeFileSync editors' review".

External links[edit]