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 type
Platforms
- Mac
- Windows
- Linux
- Flathub
- PortableApps.com
- Chocolatey




AllSync by Michael Thummerer Software Design is described as 'AllSync is the professional solution for your data synchronization, imaging, backup, update, replication and archiving needs under Microsoft Windows. AllSync supports all storage media that can be accessed via a drive letter or network path' and is a File Sync tool in the backup & sync category. There are more than 25 alternatives to AllSync by Michael Thummerer Software Design for a variety of platforms, including Windows, Linux, Mac, Android and Flathub apps. The best AllSync by Michael Thummerer Software Design alternative is FreeFileSync, which is both free and Open Source. Other great apps like AllSync by Michael Thummerer Software Design are Unison File Synchronizer, GoodSync, SyncToy and Synkron.
Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.




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.


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.




SyncToy is a free PowerToy designed by Microsoft, that provides an easy to use graphical user interface that can automatically synchronize local or network files and folders, but not WebDAV-, "Windows Mobile" files or folders and no triangle-sync as only Allway Sync...

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.




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.




Celeste is a GUI file synchronization client that can connect to almost any cloud provider you'd like. It provides a streamlined experience to back up your files, and integrates directly into your desktop system.

FolderSync enables simple sync to cloud based storage to and from local folders on the device SD cards. It support a wide range of different cloud providers and file protocols, and support for more platforms are added continuously. Root file access supported on rooted devices.




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.




Kompare is a graphical diff and merge tool targeting developers. It allows users to compare two different text files or two directories. It is part of KDE Applications (and formerly part of KDE Software Compilation) and therefore primarily used on Linux and other Unix-like...

SyncFolders helps you to synchronize the contents of two folders, including any subfolders, track file modifications and deletions in a local database, propagate deletions and detect file renames, which is a noteworthy feature.



