Collabora Online

Against what buyers need

Office suite: covers 80% of the checklist. LibreOffice's Writer, Calc, Impress and Draw served in the browser with real-time co-editing, plugged into Nextcloud, ownCloud and other file hosts over WOPI, with mobile apps and a separate desktop edition. Microsoft files go through the LibreOffice engine, so complex layouts can shift, and the free CODE build is a monthly development release that Collabora does not recommend for production. Missing: end-to-end encryption.

Judgement

What it is

Complete system

What it does

A LibreOffice-based office suite that runs in the browser for editing documents, spreadsheets and presentations together, usually embedded in Nextcloud, ownCloud or other file platforms.

Adopt it when

You self-host files in Nextcloud or similar and want in-browser editing of Office documents without Microsoft 365 or Google Workspace.

Watch out

This GitHub repo is only the issue tracker and release artifacts, the free CODE edition is meant for small or home use, and Office file fidelity is not perfect.

Ready for

Production-ready

Runs as

Self-hosted server, desktop app and mobile app

Built with

C++, LibreOffice and JavaScript

How established

Established: started 6 years ago, latest release 25.04.7-mobile.

What the license allows

GitHub could not read the license. Check it in the repository before reusing any code.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Collabora Online → runs on a microchip

How compilers were built, back to punched paper tape

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