

Unison File Synchronizer
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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.
License model
- Free • Open Source
Application type
Country of Origin
United States
Platforms
- Mac
- Windows
- Linux
- Flathub
- Flatpak
- Snapcraft
Features
Unison File Synchronizer News & Activities
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- POX added Unison File Synchronizer as alternative to RsyncUI
- POX updated Unison File Synchronizer
- SoftTest added Unison File Synchronizer as alternative to Mirror Synchronise
- paul-fresquet added Unison File Synchronizer as alternative to ByteSync
- wambo added Unison File Synchronizer as alternative to GoodSync
- sittletwopalternativeto liked Unison File Synchronizer
- alternativetogo added Unison File Synchronizer as alternative to VRangeSync
Unison File Synchronizer information
AlternativeTo Categories
Backup & Sync, OS & UtilitiesGitHub repository
- 4,629 Stars
- 247 Forks
- 105 Open Issues
- Updated May 25, 2025
Comments and Reviews
An effective tool. does what is built for. I use it since about 10 years, flawlessy, in a home environment with 3-4 devices.
Not easy to use IMHO
Stop looking, this is the best synchronization tool hands down when you have a workstation and a laptop and may files. They thought of all possible details and edge cases. You can unplug the network cable while synchronizing and noting bad will happen. In case of conflict you always decide what to do. The protocol, when tunneled over SSH saturates my 1GBPS network card, and is performant even when many small files are synchronized. The GUI may look outdated but it works flawlessly; it's rock solid and very reliable.
No way the best for me are CopyWhiz and Gs Richcopy 360, but I will give Unison a try!
The GTK sdk will be needed, I used https://sourceforge.net/projects/gtk-win/
Best synchronization software with GUI there is.
Cross-platform, highly customizable, well documented, can be made into a service with NSSM