LocalMirror

LocalMirror is an open-source macOS app that puts a simple graphical interface around rsync. It is designed for manual folder synchronization and local backups when you want the behavior of rsync without remembering terminal commands or configuration flags.

Choose a source folder or drive and the local destination that should mirror it. New files are copied, changed files are updated, and files that no longer exist in the source are removed from the destination so both locations match.

Before copying anything, LocalMirror runs an rsync dry run and shows which files would be added, changed, or deleted. The preview gives you a chance to check the selected paths and understand the result before starting the real mirror operation.

If the app detects a large number of deletions, it asks for confirmation. During the transfer, a progress view shows the current file, and a full rsync report is available when the job finishes.

LocalMirror does not add a cloud service or a hidden background process. A backup runs only when you select a saved setup and start it, which keeps the source, destination, timing, and connected drives visible to you.

The app remembers previous backup configurations for reuse, making recurring copies to an external drive less repetitive. External or network drives must still be mounted and accessible before the job begins.

Mirroring is different from adding files to an archive. The destination becomes an exact copy of the source, so anything present only in the destination is permanently deleted. Double-check both paths and review the dry-run result before every sync.

LocalMirror is a focused utility, not a replacement for Time Machine or a complete backup strategy. It requires Full Disk Access for protected locations, and important files should also exist in another backup in case a drive, path selection, or sync job fails.