SOGo
SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.
- Groupware & Calendars
- Objective-C
- GPL-2.0
- Actively maintained
GitHub stats
- GitHub stars
- 2,171
- Forks
- 326
- Open issues
- 0
- Commits, last 12 months
- 99
- Last commit
- Oct 2, 2026
- Latest release
- SOGo-5.12.11Sep 14, 2026
- Created
- Sep 18, 2012
Data from the GitHub API, refreshed daily.
About SOGo
SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface. SOGo is open source under the GPL-2.0 license and written mainly in Objective-C, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 2,171 stars and 326 forks on GitHub, with 99 commits over the last year. It installs natively rather than through an official Docker image, so plan for a short manual setup.
Topics
- sogo
- objective-c
- groupware
- angularjs-material
Open-source alternative to
SOGo can replace these commercial products. Compare every option on each page.
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What is SOGo?
SOGo is a free, open-source app you can host on your own server, listed in our Groupware & Calendars category. SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface. The source code lives at github.com/Alinto/sogo, where it has 2,171 stars.
Is SOGo free and open source?
Yes. SOGo is open-source software released under the GPL-2.0 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 SOGo with Docker?
SOGo does not list an official Docker image. It installs natively (Objective-C), so follow the install steps in its README or look for a community-maintained container.
What are the best alternatives to SOGo?
Popular open-source alternatives to SOGo include Nextcloud, Seafile and Colanode. SOGo itself is a self-hosted alternative to Google Workspace, Microsoft 365 and Google Calendar.
Is SOGo actively maintained?
The most recent commit to SOGo was on Oct 2, 2026 with 99 commits in the past twelve months. The latest release is SOGo-5.12.11, published Sep 14, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.