FreeFileSync for Windows - FreeFileSync is a free, open source folder comparison and synchronization application for Windows. The application also runs on Mac OS X and Linux. FreeFileSync provides you with a clean, easy to use and intuitive interface, which offers numerous features for synchronization purposes. Key Features Include: Detect moved and renamed files and folders. Automate sync as a batch job. Detect conflicts and propagate deletions. Use macros for recurring backups. Optimal sync sequence prevents disc space bottlenecks. Access variable drive letters by volume name (USB sticks). Copy NTFS extended attributes (compressed, encrypted, sparse). FreeFileSync also supports portable installation onto USB memory sticks or external hard drives.