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

Features:

  • 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:

  • Fixed comparison results cleared after mouse-scrolling the first folder pair
  • Stricter base folder existence checks before synchronization
  • Disable all file pairs when base folder status cannot be determined
  • Fixed sync statistics if base folder existence test failed
  • Work around glitch in grid scrollbar size calculation
  • Fixed folder drag and drop failing after locale conflict (macOS)
  • Fixed incorrect mime permissions after installation (Linux)
  • Stricter server response validation during update check
  • Fixed incomplete item path in log if source item is missing
  • Fixed installation error when running ConEmu
  • Support starting FreeFileSync as root login user (Linux)