FreeFileSync

FreeFileSync is a free, Open Source file synchronization solution that works seamlessly on Windows, macOS, and Linux. Its core strength lies in comparing two folders and synchronizing them by copying only the minimal amount of data required. This efficient process is perfect for routine backups, updating files between a computer and an external drive, or keeping project folders in sync. By transferring just the differences, it saves time and storage space, offering a versatile and powerful tool for anyone who needs to manage their files across different systems.