FreeFileSync 10.16

FreeFileSync is a free and Open Source folder comparison and synchronization tool.

14.0 MB
4.5 26 votes

It is highly optimized for performance and usability without a needlessly complex user interface.


  • Detect moved and renamed files and folders
  • Copy locked files (Volume Shadow Copy Service)
  • Detect conflicts and propagate deletions
  • Binary comparison
  • Full support for Symbolic Links
  • Automate sync as a batch job
  • Multiple folder pairs
  • Copy NTFS extended attributes (compressed, encrypted, sparse)
  • Copy NTFS security permissions
  • Support long path names > 260 characters
  • Fail-safe file copy
  • Cross-platform: Windows/Linux
  • Expand environment variables like %USERPROFILE%
  • Access variable drive letters by volume name (USB sticks)
  • Native 32 and 64-bit builds
  • Keep versions of deleted/updated files
  • Optimal sync sequence prevents disc space bottlenecks
  • Full unicode support
  • Highly optimized performance
  • Include/exclude files via filter
  • Local and portable installation
  • Handle daylight saving time changes on FAT/FAT32
  • Use macros %time%, %date%, et al. for recurring backups
  • Case sensitive synchronization
  • Built-in locking serializes multiple jobs running against the same network share

What's New:

  • Redesigned progress indicator graphs
  • Avoid needless HTTP delay prior to Google Drive upload
  • Skip redundant CWDs during FTP metadata updates
  • Fixed MLSD 501 syntax error on Serv-U FTP server
  • Check FTP server status using FEAT/HELP instead of root folder
  • Avoid redundant TYPE changes during FTP directory listing
  • Access FTP files by full path and avoid CWDs
  • Support FTP home paths with non-ASCII chars
  • Work around libcurl bug failing to buffer FTP TLS authentication
  • Skip redundant FTP SIZE check before downloading file
  • Use ISO 8601 week of the year definition for %week% macro
  • Show login prompt for disconnected NAS share
  • Force icon resolution to 96 DPI in GTK2 build (Linux)
  • Detect missing full disk access permission (macOS)
  • Fixed accessibility issue with progress graph colors
  • Use short naming convention when deleting abandoned folder lock
  • Detect endless folder lock recursion on buggy file systems
  • Fixed Google Drive parsing error for invalid file time

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