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Overview
Collabora Online provides collaborative editing of text documents, spreadsheets, presentations, and related formats in modern browsers. Its architecture combines the document engine, coolwsd, kit processes, and a browser client and integrates with platforms such as Nextcloud and ownCloud through WOPI.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Key features
Edit office documents collaboratively in the browser
Text documents, spreadsheets, presentations, and other formats can be edited in a browser without a desktop plugin, including multi-user collaboration.
Sources: [3]
Integrate with storage and collaboration platforms through WOPI
WOPI connects Collabora Online to systems such as Nextcloud and ownCloud so document editing can participate in the host platform's authentication and file lifecycle.
Sources: [3]
Best fit
Fits self-hosted office editing embedded into existing platforms
It is useful when documents should remain on controlled infrastructure while browser-based editing is added to an existing file collaboration system.
Sources: [3]
Before adoption
The GitHub source mirror is read-only and not the contribution target
Active development and code review happen on Gerrit, pull requests are not accepted on the mirror, and issues remain in the original CollaboraOnline/online repository.
Official sources
- [1]CollaboraOnline/online issue tracker(2026-09-30)
- [2]CollaboraOnline/online.mirror source mirror(2026-09-30)
- [3]Collabora Online source mirror README(2026-09-30)
- [4]Collabora Online MPL-2.0 copying notice(2026-09-30)
- [5]Collabora Online 26.04.5.0 configure metadata(2026-09-30)
Supplemental curator note
The requested CollaboraOnline/online repository is now used for issue tracking and release artifacts. Active application development happens on Gerrit, with CollaboraOnline/online.mirror serving as the read-only GitHub source mirror, so this catalog entry uses the mirror. GitHub reports NOASSERTION for the license, while COPYING states MPL-2.0 and the README notes that some components use other open-source licenses.
Try it in 3 steps
- 1
Get the source
git clone --depth 1 https://github.com/CollaboraOnline/online.mirror.git - 2
Enter the repository
cd online.mirror - 3
Check the official steps
Continue with the commands in the README Installation, Quick Start, or Getting Started section.
find . -maxdepth 1 -iname 'README*' -exec sed -n '1,220p' {} \; -quit
Growth
Growth trends · Last 30 days
21 Stars
Trend data is still being collected.
Built with
Categories and tags
Categories
GitHub data
GitHub dataView detailed GitHub data
- Stars
- 21
- Forks
- 14
- Watchers
- 0
- Open issues
- 0
- Owner type
- Organization
- Primary language
- C++
- License
- Not determined
- Repository last updated
- Sep 30, 2026
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