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.
Syncthing AlternativesOnly apps categorised as Duplicate File Finders
The best Duplicate File Finder alternative to Syncthing is ByteSync, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 100 alternatives to Syncthing, but unfortunately only one of them is a Duplicate File Finder.
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Most Syncthing alternatives are Backup Clients, but you can also narrow the list to Duplicate File Finders or File Sync Tools. Other popular filters are Open Source, iPhone and Android.