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 Allway Sync for Windows and since it's discontinued a lot of people are looking for a replacement. The best open source Windows alternative is FreeFileSync. If that doesn't suit you, our users have ranked more than 50 alternatives to Allway Sync and 15 are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to Allway Sync are Unison File Synchronizer, Synkron, Toucan and DirSync Pro.
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.


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.




Toucan is a small portableapp utility allowing you to synchronise, backup and secure your data with more options than the built in suite utilities. It is split up into 7 tabs, allowing you to easily find the function that you want.


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.




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.

Create Synchronicity is a nice, lightweight backup program with a very user-friendly - yet powerful - interface, that synchronizes files and folders extremely quickly (it can even recognize paths such as "MyUSB"\MyFolder, and locate the USB drive called...



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.





OneWaySynchronize is a Windows command line tool for backing up files from A (source) to B (destination). It will make sure that B is an exact copy of A, by copying files and overwriting and deleting files on B. The original A files are never modified in any way.

AllwaySync has changed hands many times. Back in the day, I trusted it. However, now it was acquired by GoodSync, and they discontinued it. FreeFileSync is essentially donation-ware and continues to get updates.