Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.
Cost / License
- Freemium
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Flathub
- PortableApps.com
- Chocolatey




The best Backup Client alternative to Syncthing is FreeFileSync, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Syncthing and six of them are Backup Clients so hopefully you can find a suitable replacement. Other interesting Backup Client alternatives to Syncthing are SyncBack, GoodSync, ByteSync and VRangeSync.
Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.




SyncBack allows for backing up, synchronizing, and restoring files on Windows. It offers a free version, SyncBackSE and Pro for more features, including local networks and cloud backups. Ideal for individuals and large organizations like hospitals, ensuring data protection and recovery.



A comprehensive solution for file synchronization and backup, GoodSync allows seamless and real-time file sync across desktops, mobiles, and cloud services directly, bypassing third-party servers. Ideal for both personal and professional needs.




Free and open-source differential file synchronization software for Windows, macOS, and Linux. ByteSync securely compares and transfers only file differences — no VPN, no setup, just fast, encrypted, cross-platform sync and backup.

VRangeSync is a freeware File synchronization for Unix/Linux and Microsoft Windows. It is a command-line utility which copy and move data from one location to another on a storage device. It is a data migration, cloner, file replication and synchronization software.




FreeFileSync is less prone to errors. I trust it more than Syncthing.