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




SyncToy is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is FreeFileSync, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to SyncToy and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to SyncToy are SyncBack, GoodSync, Unison File Synchronizer and Synkron.
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.




Unison is a file-synchronization tool for POSIX-compliant systems (e.g. *BSD and GNU/Linux), macOS and Windows, with the caveat that the platform must be supported by OCaml. It allows two replicas of a collection of files and directories to be stored on different hosts (or diffe.


Synkron is an application for folder synchronisation and folder-backups that allows you to configure your synchronisations in detail. Despite having many features, the user interface of Synkron is very user-friendly and easy to use.




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.




Bacula is a set of computer programs that permit managing backup, recovery, and verification of computer data across a network of computers of different kinds.




Back up your data and synchronize PCs, Macs, servers, notebooks, and online storage space.




ChronoSync can synchronize, backup, and create bootable backups to almost anything you can connect to your Mac: select cloud services, other Macs, NAS drives, external drives, PC's or anything you can mount as a volume.




JFileSync is a Java application used to synchronize directories of two different file systems. For instance, you want to synchronize a set of directories on your laptop with a set of corresponding directories on your workstation. English and German UI.


SmartBackup is an easy to use macOS utility to sync folders, volumes, or to create a bootable clone of your startup disk. It supports different configurations for multiple destinations, excludes, can archive deleted or changed files, and features built-in automation.

Former SyncToy user converted to FFS. Researched a lot of alternatives, found FFS came closest to what I needed. Completely dropped SyncToy now. Happily using FFS for several months.