Notes 
Collabora Online is an open-source collaborative office suite derived from LibreOffice, supporting real-time co-editing of documents, spreadsheets, and presentations in a browser. It integrates directly with Nextcloud, ownCloud, Seafile, and other self-hosted platforms, so your files stay on infrastructure you control.
Reviewed by Marco Wollank
Collabora Online
collaboraonline.com 2 ratings so far*
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Threat level
Hardened
A hardened pick. Worth the effort once you have chosen to shrink your footprint on purpose. Enough for most people. Threat levels
Our take
If you are already running Nextcloud or a similar self-hosted cloud, Collabora Online is the most complete office-editing layer available for it, offering strong LibreOffice format compatibility without sending documents to a third-party service. The free Community Edition (CODE) is well-suited to small teams and individual self-hosters. The practical limitation is that deployment requires comfort with containers and server administration. This is not a consumer product. For organisations already committed to self-hosting, that is an acceptable cost for full data sovereignty over office editing.
GitHub at a glance
CollaboraOnline/online androidcppdocumentsenterprisefree-softwarehacktoberfestiosjavascriptlibreofficeofficeopen-sourceopensourceproductivity
Stars
3,389
+7 this week
Forks
1,015
45 watching
Last commit
7d ago
healthy
Latest release
helm-collabora-online-1.3.7
11d ago, 88 total
Star history
Issues
77% closed
861
open
2,862
closed
+86 / -79
opened / closed, last 4 weeks
Opened vs closed, last 12 weeks
Commits, last 26 weeks
53 commits, active 21 of 26 weeks
281 contributors since Oct 2020
Languages
- Shell 47.2%
- Perl 23.9%
- Go Template 15.9%
- Other 13%
Updated daily from the GitHub API. Star tracking since Jun 22, 2026.
Website at a glance
collaboraonline.com
D- score 25
Weak website security headers
Graded by Mozilla HTTP Observatory, tested 3d ago
Inspect this site yourself
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
Collabora Online alternatives
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LibreOffice LibreOffice consists of programs for word processing, creating and editing of spreadsheets, slideshows, diagrams and drawings, working with databases, and composing…
PrivMX The complete teamwork experience: Chats & calls, files, tasks, kanban boards, mind maps and calendars. Team members can communicate one-on-one, group chat and section channels.…
ONLYOFFICE Features: Online document editors, platform for document management, corporate communication, mail and project management tools. Read more: Data Security & Access Control -…
Etherpad Highly customizable open-source online editor providing collaborative editing in real time.
Vikunja The project is still under development and the native apps are not final yet, but the web version works great. Offers an import feature from Todoist, Trello and Microsoft To-Do.
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