FreeFileSync is a folder comparison and synchronization software that creates and manages backup copies of all your important files. Instead of copying every file every time, FreeFileSync determines the differences between a source and a target folder and transfers only the minimum amount of data needed. Features Detect moved and renamed files and folders Copy locked files (Volume Shadow Copy Service) Detect conflicts and propagate deletions Binary file comparison Configure handling of Symbolic Links Automate sync as a batch job Process multiple folder pairs Comprehensive and detailed error reporting Copy NTFS extended attributes (compressed, encrypted, sparse) Copy NTFS security permissions Support long file paths with more than 260 characters Fail-safe file copy Cross-platform: Windows, Linux, OS X Expand environment variables like %USERPROFILE% Access variable drive letters by volume name (USB sticks) Native 64-bit support Keep versions of deleted/updated files Prevent disc space bottlenecks via optimal sync sequence Full Unicode support Highly optimized runtime performance Include/exclude files via filter FreeFileSync portable and local installation available Handle daylight saving time changes on FAT/FAT32 Use macros %time%, %date%, etc., for recurring backups Case-sensitive synchronization Built-in locking: serialize multiple jobs running against the same network share