Tools that fix and prevent sync problems, compared at a glance, plus official downloads.
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| Tool | Rating | Best for | Works on | Price | Link |
|---|---|---|---|---|---|
Best FreeSyncthing | — | Private device-to-device sync | AndroidLinuxmacOSWindows | Free | Check price |
Editor's PickNextcloud | — | Teams and homelabs who want their own cloud | AndroidiOSLinuxmacOSWindows | Free software, hosting costs vary | Check price |
Best OverallBackblaze | — | Automatic backup of a full computer | macOSWindows | See current price | Check price |
rclone | — | Power users who like the command line | LinuxmacOSWindows | Free | Check price |
AndroidLinuxmacOSWindowsLast tested Oct 2026
Best for: Private device-to-device sync
Free, open-source folder sync between your own devices, with no cloud in the middle.
AndroidiOSLinuxmacOSWindowsLast tested Oct 2026
Best for: Teams and homelabs who want their own cloud
Self-hosted file sync and sharing that you control.
macOSWindowsLast tested Oct 2026
Best for: Automatic backup of a full computer
Simple cloud backup for a whole computer.
LinuxmacOSWindowsLast tested Oct 2026
Best for: Power users who like the command line
A command-line tool that copies and syncs files to almost any cloud.
