FreeFileSync is an Open-Source folder comparison and synchronization tool. It is optimized for highest performance and usability 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.

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).

Limitations: This program is advertising supported and may offer to install third party programs that are not required for the program to run. These may include a toolbar, changing your homepage, default search engine or other third party programs. Please watch the installation carefully to opt out.