Citadel vs LibreOffice Online
A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Citadel
All-in-one groupware, mail and collaboration server
VS
LibreOffice Online
Browser-based office suite from the LibreOffice project
| Feature | Citadel | LibreOffice Online |
|---|---|---|
| Category | Groupware | Office Suites |
| License | GPL-3.0 | MPL-2.0 |
| Language | C | JavaScript |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 2,048 MB |
| Deployment | bare-metal, source | docker, source |
| GitHub stars | ★ 100 | ★ 649 |
| First released | 1987 | 2015 |
| Replaces | Microsoft Exchange, Microsoft 365 | Microsoft 365, Google Docs |
Why pick each one
Choose LibreOffice Online if…
- True open-source office
- Strong format support
Frequently asked questions
Is Citadel or LibreOffice Online better?
Neither is universally better. LibreOffice Online has the larger community, while Citadel is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Citadel and LibreOffice Online free and open-source?
Yes. Citadel is licensed under GPL-3.0 and LibreOffice Online under MPL-2.0. Both can be self-hosted at no software cost.
Can I run Citadel and LibreOffice Online with Docker?
Citadel: check the project docs for container support. LibreOffice Online: yes.