FreeFileSync is an Open-Source file/folder comparison and synchronization tool.It is optimized for highest performance and usability without restricted or overloaded UI interfaces. You can quickly compare files (bytewise or by date) and synchronize them without limitations so an arbitrary number of files, subfolders, including empty folders, can be synchronized.FreeFileSync Features: Lean & easily 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 command line / 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 transferred with the current settings. Easily configurable command line mode for automated synchronization. Support for filesizes > 4 GB. Option to move files to Recycle Bin instead of deleting/overwriting them. 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-operation. 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. FreeFileSync can create sync jobs via GUI to synchronize automatically (can be scheduled or executed directly).