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. FreeFileSync is Open Source software, available for Windows, macOS, and Linux.
Compare & Sync files and folders
FreeFileSync lets you easily compare and synchronize files and folders on your computer. Features:
Compare files (bytewise or by date) and synchronize themHandle conflicts and propagate deletionsVolume Shadow Copy ServiceMultiple folder pairsBatch capabilityBinary comparisonOptimized performanceCross-PlatformSynchronization database for the propagation of deleted files and conflict detectionSupport for multiple folder pairs with distinct configurations and more.
FreeFileSync download
You can download FreeFileSync from its home page.