freefilesync ☆

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Description:
Folder comparison and synchronization software

Type: Cask | Latest Version: 14.7@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Productivity

Tags: sync backup file-management comparison utility

Install: brew install --cask freefilesync

About:
FreeFileSync is a robust open-source folder comparison and synchronization tool that visually highlights differences between file systems. It offers multiple sync modes, including two-way, mirror, and update, allowing users to efficiently manage backups and data mirroring. The software is designed for high performance, handling large datasets with features like optimized scanning and real-time sync capabilities.

Key Features:

Visual folder comparison with detailed change detection
Supports multiple sync modes (Two-way, Mirror, Update)
Batch jobs for automated synchronization tasks
Cross-platform support (Windows, macOS, Linux)

Use Cases:

Creating local backups of critical data
Synchronizing files between a desktop and an external drive
Mirroring a project folder to a cloud storage mount

Alternatives:

rsync – Command-line utility offering powerful scripting capabilities but lacks a native GUI.
Syncthing – Focuses on continuous peer-to-peer file synchronization across multiple devices rather than scheduled local folder syncing.

Version History

Detected	Version	Rev	Change	Commit
Jan 21, 2026 5:28pm	14.7	0	VERSION_BUMP	ac1c3d97
Jul 30, 2025 9:51pm	14.4	0	NEW	f54b0f77