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




There are many alternatives to BestSync for Windows if you are looking for a replacement. The best Windows alternative is FreeFileSync, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to BestSync and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to BestSync are Duplicati, SyncBack, GoodSync and WinExt Free.
Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.




Duplicati stores encrypted, incremental backups with AES-256 encryption and GPG, compatible with Windows, Linux, MacOS. Supports cloud services like OneDrive, Google Drive, and includes a built-in scheduler, auto-updater. Run backups through a web interface or command line.




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.




Powerful Win utilities: fix registry, clean junk, protect privacy, optimize system, quick launch, find duplicates, folder size, see more recent resources, activity monitor, batch operation, synchronization, disable context menus, skip UAC, trace file.




DirSync Pro is a small, but powerful utility for file and folder synchronization. Java JRE 1.7 or above is needed to run DirSync Pro.




DSynchronize is a stand-alone utility that let you periodically synchronize two or more folders on Hard Disk, Floppy Disk, LAN, USB Key, CD-DVD (with packet writing software) and FTP server.




Seamlessly generate complete system or partition images without disruption. Ensure quick recovery with secured data retrieval, schedule backups, and even create bootable media to restore functionality if Windows fails. Supports differential imaging, email alerts, and AI-enhanced backup suggestions.




KLS Backup - Powerful backup and synchronization program with FTP, WebDAV and cloud support (Windows Azure, Amazon S3, Eucalyptus Walrus)




Back4Sure is a feature-rich backup solution for typical backup use. No VSS Volume Shadow Copy function for open files. The program can make a backup to hard-disk, USB drive or network and can also be compressed using high or low compression settings to a ZIP or 7-zip file of...



Automates file, folder, and drive synchronization with one- or two-way sync, scheduled jobs, LAN and USB support, portable use, change detection, reporting, and optional add-ons for exclusive file handling and Windows service operation.




A graphical interface for the Rsync engine that will synchronise files between two computers either locally or over the internet. The beauty of Rsync is that it only transfers the exact part of a file that has changed (differential synchronisation), saving bandwidth and time.
