FreeFileSync v13.9

FreeFileSync is a powerful open-source file synchronization and backup software designed for Windows, macOS, and Linux. It provides an intuitive user interface and efficient file sync capabilities to help users easily manage their backup needs.

Use cases: automatically back up computer files to external hard drives daily, manage photos and multimedia files, sync files across multiple devices, share work files with teams, sync website files, migrate large-scale data, and more!!

Key Features

1. File Synchronization Modes

• Two-way sync: Keeps files in both locations fully synchronized
• Mirror sync: Copies source folder exactly to target
• Update sync: Only copies new and modified files to target

2. Intelligent Comparison Technology

• Adopts advanced file comparison algorithms to quickly identify file changes
• Supports comparison by file size, modification time, and content
• Displays file differences in real-time for easy review of sync details

3. Automation Features

• Supports creating batch jobs for scheduled automatic sync
• Can set up multiple sync task combinations
• Supports system event-triggered sync (e.g., when USB device is inserted)

4. Security Features

• File versioning to prevent accidental overwrites
• Supports recycle bin to avoid permanent file deletion
• Preview changes before syncing to reduce operational risk

5. Advanced Features

• Supports multi-threaded parallel processing for faster sync
• Built-in file filter to exclude unwanted files from sync
• Supports handling locked files and long path files
• Supports FTP/SFTP remote sync
• Supports compressed file transfer