Unison
Unison is an open-source, self-hosted app in the File Sync & Storage category, licensed GPL-3.0 and written mainly in OCaml. It has 5,552 GitHub stars and its last commit was on Sep 20, 2026 (data as of Oct 26, 2026).
GitHub stats
- GitHub stars
- 5,552
- Forks
- 277
- Open issues
- 92
- Commits, last 12 months
- 98
- Last commit
- Sep 20, 2026
- Latest release
- v2.54.0May 1, 2026
- Created
- Feb 24, 2016
- License
- GPL-3.0Open source
Data as of from the GitHub API. Report an error
Project health
ActiveActive: last commit Sep 20, 2026, 98 commits in 12 months.
| Last commit | Sep 20, 2026 |
|---|---|
| Commits, last 12 months | 98 |
| Latest release | v2.54.0 (May 1, 2026) |
| Releases, last 12 months | 2 |
| Releases, all time | 21 |
| Open issues | 92 |
| Open pull requests | 14 |
| Good first issues | 0 |
| Contributing guide | Yes |
| Security policy | No |
| Created | Feb 24, 2016 |
Health as of , from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error
About Unison
Unison is a file-synchronization tool for OSX, Unix, and Windows.
Description adapted from awesome-selfhosted (CC BY-SA 3.0). Source code: github.com/bcpierce00/unison.
Repository preview
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Is Unison free and open source?
Yes. Unison is open-source software released under the GPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Unison with Docker?
Unison does not list an official Docker image. It installs natively (deb and OCaml), so follow the install steps in its README or look for a community-maintained container.
What are the best alternatives to Unison?
Popular self-hosted alternatives to Unison include Syncthing, Puter and Nextcloud.
Is Unison actively maintained?
The most recent commit to Unison was on Sep 20, 2026 with 98 commits in the past twelve months. The latest release is v2.54.0, published May 1, 2026. It had 92 open issues on GitHub. appsgit's project-health label for it is "Active" as of Oct 26, 2026.