FreeFileSync is an Open-Source folder comparison and synchronization tool. It is used for fast and easy configurable sync operations between two folders without restricted or overloaded UI interfaces.

Features:

• Compare files (bytewise or by date) and synchronize them.
• No limitations: An arbitrary number of files can be synchronized.
• Subfolders are also synchronized, including empty folders.
• Network support.
• Lean & easy accessible UI: Highly optimized for speed and huge sets of data.
• Algorithms coded in C++ completely.
• Focus on usability:
  • Only necessary functionality on UI: no overloaded menus or icon jungle.
  • Select folders via drag & drop.
  • Last configuration and screen settings are saved automatically.
  • Maintain and load different configurations by drag&drop, load-button or commandline.
  • Double-click to show file in explorer.
  • Copy & paste support to export file-lists.
  • Delete superfluous/temporary files directly on main grid.
  • Right-click context menu.
  • Progress indicators, status information and error reporting.
  • Sort file-lists by name, size or date.
  • Display statistical data: total filesizes, amount of bytes that will be transfered with the current settings.
• Easy configurable commandline mode for automated synchronization.
• Support for filesizes > 4 GB.
• Option to move files to Recycle Bin instead of deleting/overwriting them.
• UTC (coordinated world time) is used when comparing file times avoiding problems with time zones or daylight saving time.
• Automatically ignore directories "\RECYCLER" and "System Volume Information" when comparing and syncing.
• Localized German version available.
• Delete before copy: Avoid disc space shortages with large sync-operations.
• Based on wxWidgets framework => Portable to many operating systems.
• Filter functionality to include/exclude files from synchronization (without re-compare!).
• Include/exclude specific files from synchronization manually.
• Create sync jobs via GUI to synchronize automatically (can be scheduled or executed directly).

What's New in version 2.1:

• Fixed bug that could cause FreeFileSync to crash after synchronization

What's New in version 2.0:

• Copy locked files using Windows Volume Shadow Copy
• Load file icons asynchronously for maximum display performance
• Handle include filter correctly when comparing
• Display optional summary window before starting synchronization
• Adjust sync direction properly when switching sides
• Info about sync variant on main dialog
• Issue a warning message for each conflict type when comparing
• Save default configuration in user application path (Installer based version)
• Limit main dialog minimum size
• Update grid row labels while scrolling
• Right-click selects cell before opening context menu
• New context menu options to manually assign a sync-direction
• Moved sync-preview switch into middle grid's context menu
• Possibility to remove top folder pair
• Fixed calculation of row total in sync preview
• File icons configurable for each side
• Many small GUI improvements
• Compiled successfully with GCC 4.4.0 and MS Visual C++ 2008
• Added Russian translation
• Updated translation files