RealTimeSync will extract relevant directories for synchronization and set up the command line to execute the .ffs_batch file when changes are detected. Now press Start to begin monitoring.

Feb 22, 2026 · FreeFileSync is a free open source data backup software to compare and synchronize files and folders on Windows, macOS, and Linux.

<FreeFileSync installation folder>\RealTimeSync.exe <path to *.ffs_real or *.ffs_batch file> e.g.: "C:\Program Files\FreeFileSync\RealTimeSync.exe" "D:\Backup Projects.ffs_real"

Jun 11, 2019 · This consists of defining the left-right pair (s), the type of sync, and whether to use a database to detect changes or not (and optionally change the Delete and overwrite method, modify …

Jun 11, 2019 · Following other advice that I found on this forum, I copied the xxx.ffs_real file to the "shell:startup" folder. But when I reboot the computer, RealTimeSync is not started up automatically.

Dec 3, 2024 · Read the "Example: Real time synchronization using FreeFileSync" in the RTS manual page.

Jan 29, 2024 · You can try reducing the Idle Time. Or use multiple RTS instances, reducing the scope of the monitored folders of each of the instances, and define FFS batch configurations matching the …

By default, FreeFileSync displays a progress dialog during synchronization and will wait while the summary dialog is shown. If the progress dialog is not needed, enable the Run minimized checkbox …

Basic Usage: Select left and right folders. Compare them. Choose synchronization settings. Click Synchronize to start the synchronization process.

By default, FreeFileSync uses a single GlobalSettings.xml file containing options that apply to all synchronization tasks; for examples, see Expert Settings. If you want FreeFileSync to use a different …