Microsoft 365 vs Collabora Online
A side-by-side look at Microsoft 365 (the paid SaaS) and Collabora Online (the open source alternative). Use this page to decide if the switch fits your team and workflow.
| Microsoft 365 | Collabora Online | |
|---|---|---|
| Tagline | Office suite in the cloud — Word, Excel, PowerPoint. | Browser-based LibreOffice for collaborative editing. |
| License | Proprietary SaaS | MPL-2.0 |
| Pricing | Personal from $6.99/month. | Free to self-host · optional paid hosted plan |
| Self-host option | No | Yes — difficulty 3/5 |
| Hosted cloud available | Yes (only option) | Yes |
| Desktop apps | Varies by product | Web only |
| Mobile apps | Official apps typically available | None official |
Best for
Browser-based collaboration with LibreOffice engine.
Collabora Online strengths
- True LibreOffice engine in the browser.
- Plugs into Nextcloud, ownCloud, and more.
- Strong at ODF-first workflows.
Collabora Online weaknesses
- MS Office fidelity is good but below ONLYOFFICE in places.
- Requires integration with a file server (no standalone UI).
- Server resource usage is noticeable.
What's the catch with Microsoft 365?
- Subscription-only model for full features.
- Heavy client, frequent updates.
- Cloud storage quota included but limited.
Still unsure?
Check the full list of alternatives to Microsoft 365: see Microsoft 365 alternatives, or learn more about Collabora Online on its project page.
Recommended reading
When self-hosting goes wrong: seven failure modes and how to avoid them
An honest retrospective on the ways self-hosted setups break — not in theory, but in practice — and the small habits that prevent most of them.
Will the open source project you depend on still exist in three years?
Bus factor, maintainer burnout, funding models, and the signals that separate OSS projects that survive from those that quietly decay.
From SaaS to self-hosted: a 30-day migration playbook
A week-by-week plan to move one service off SaaS and onto your own server without breaking your team's workflow.