Description
The classic backup mistake is copying the whole folder again from scratch — out of thousands of files only a handful actually changed, and the rest is wasted duplication taking twice the space.
FreeFileSync compares the source and target folders first and moves only the parts that genuinely differ, listing what was added, changed or deleted so you can look before it acts. Open-source and free, with builds for Windows, macOS and Linux.
Compare before sync: two side-by-side panes show the differences between the folders, additions, edits and deletions each marked with their own icon, so you confirm before syncing instead of blindly overwriting.
Multiple sync modes: mirror, two-way and update, covering backup, publishing and two-machine sync.
RealTimeSync: the bundled component watches a folder and triggers a sync automatically the moment something changes, with nothing to run by hand.
Batch jobs: save a configured sync as an ffs_batch file and run it by double-click or on a schedule, so routine backups need no attention at all.
Handles huge file sets: comparing hundreds of thousands of files stays responsive, with support for long paths, symbolic links and FTP/SFTP remote folders.
FreeFileSync compares the source and target folders first and moves only the parts that genuinely differ, listing what was added, changed or deleted so you can look before it acts. Open-source and free, with builds for Windows, macOS and Linux.
Features
Compare before sync: two side-by-side panes show the differences between the folders, additions, edits and deletions each marked with their own icon, so you confirm before syncing instead of blindly overwriting.
Multiple sync modes: mirror, two-way and update, covering backup, publishing and two-machine sync.
RealTimeSync: the bundled component watches a folder and triggers a sync automatically the moment something changes, with nothing to run by hand.
Batch jobs: save a configured sync as an ffs_batch file and run it by double-click or on a schedule, so routine backups need no attention at all.
Handles huge file sets: comparing hundreds of thousands of files stays responsive, with support for long paths, symbolic links and FTP/SFTP remote folders.
