FreeFileSync version 12.5 is a powerful open-source file synchronization software that allows users to manage backup data and perform comparison amongst files and folders. It supports synchronization between local drives, network shares, and cloud storage, including Google Drive and FTP. The software also includes real-time sync capabilities, file versioning, and a graphical interface that visualizes comparisons, enabling users to make informed decisions about their data. FreeFileSync includes a batch mode for automated and scheduled synchronization tasks.