FreeFileSync

FreeFileSync is a free, open source folder comparison and synchronization software for Windows, Linux and Mac OS X. It also works on 64bit operating systems on all platforms. The program can be installed in two versions: as a standard installer on Windows or as a portable application (no registry entries). Powered by a clean, easy, intuitive interface, this tool offers a myriad of features for synchronization purposes.

Features
Detect moved and renamed files and folders
Copy locked files (Volume Shadow Copy Service)
Detect conflicts and propagate deletions
Binary file comparison
Full support for 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 path names > 260 characters
Fail-safe file copy
Cross-platform: Windows/Linux
Expand environment variables like %USERPROFILE%
Access variable drive letters by volume name (USB sticks)
Native 64-bit support
Keep versions of deleted/updated files
Optimal sync sequence prevents disc space bottlenecks
Full Unicode support
Highly optimized performance
Include/exclude files via filter
Local and portable installation
Handle daylight saving time changes on FAT/FAT32
Use macros %time%, %date%, et al. for recurring backups
Case sensitive synchronization
Built-in locking serializes multiple jobs running against the same network share

Whats New

System Requirements
Windows 11
Windows 10
Windows 8.1
Windows 8
Windows 7