FreeFileSync 13.7
Latest version • Updated May 2026
FreeFileSync 13.7 is a powerful, free and open-source file synchronization and backup software. It helps you easily mirror folders, detect changes, compare files and keep your important data safe across multiple drives, external HDDs, NAS, and cloud storage. With support for two-way sync, one-way backup, versioning, and real-time synchronization, FreeFileSync is the perfect tool for both home users and professionals who need reliable and fast file backup without paying for expensive solutions.
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About FreeFileSync
FreeFileSync 13.7 is a powerful, free and open-source file synchronization and backup tool that helps you keep your folders perfectly in sync between multiple locations. Whether you want to synchronize data between your internal drive and external HDD, laptop and desktop, or local folder and NAS/cloud storage, FreeFileSync makes the process fast, reliable, and effortless.
Unlike many commercial backup solutions, FreeFileSync is completely free, open-source, and contains no ads, no telemetry, or paid limitations. It is trusted by millions of users worldwide including home users, photographers, developers, and system administrators who need a robust and flexible synchronization tool.
In version 13.7 (May 2026) the program received improved performance with large folders, better real-time synchronization, enhanced cloud storage support, and a cleaner user interface. It remains one of the best free alternatives to paid tools like GoodSync or SyncBack.
FreeFileSync excels at comparing files by content, size, and modification date, allowing you to choose the most suitable synchronization mode for each task — two-way sync, mirror backup, or update only.
Key Features
- Two-way and one-way synchronization with flexible rules
- Visual comparison of folders with color-coded differences
- Extremely fast detection of changed, new, and deleted files
- Versioning support to keep previous file versions
- Real-time synchronization option
- Support for FTP, SFTP, and major cloud storage providers
- Powerful filtering and exclusion rules for precise control
- Batch jobs and Windows Task Scheduler integration
- Portable version available — no installation required
- Cross-platform support: Windows, macOS, and Linux
System Requirements
FreeFileSync 13.7 is very lightweight and well optimized. It runs smoothly even on older computers and does not require powerful hardware, making it suitable for almost any user.
- Windows 10 / Windows 11 (32-bit and 64-bit)
- macOS 12 Monterey or newer
- Any modern Linux distribution
- 2 GB RAM minimum (4 GB or more recommended for very large folders)
- 150 MB free disk space
- No internet connection required for local synchronization
Alternatives to FreeFileSync
If you are looking for other file synchronization and backup tools in 2026, here are the most popular alternatives to FreeFileSync. Each has its own advantages depending on your specific needs and budget.
- GoodSync — more advanced features and user-friendly interface (freemium)
- Duplicati — excellent encrypted backup solution with strong cloud support
- SyncBackFree — very user-friendly with good scheduling options
- Rclone — powerful command-line tool for cloud and remote synchronization
- rsync — classic and extremely reliable tool (mainly for Linux/macOS)