Mailu vs ONLYOFFICE Docs
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?
Mailu
Simple yet full-featured Docker mail server
VS
ONLYOFFICE Docs
Online office suite for documents, sheets, and slides
| Feature | Mailu | ONLYOFFICE Docs |
|---|---|---|
| Category | Mail Servers | Document Management |
| License | MIT | AGPL-3.0 |
| Language | Python | Shell |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 4,096 MB |
| Deployment | docker, kubernetes | docker, bare-metal, source |
| GitHub stars | ★ 7,443 | ★ 6,794 |
| First released | 2016 | 2016 |
| Replaces | Google Workspace, Microsoft 365 | Google Docs, Microsoft 365 |
Why pick each one
Choose ONLYOFFICE Docs if…
- Excellent format compatibility
- Strong collaboration features
Frequently asked questions
Is Mailu or ONLYOFFICE Docs better?
Neither is universally better. Mailu has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Mailu and ONLYOFFICE Docs free and open-source?
Yes. Mailu is licensed under MIT and ONLYOFFICE Docs under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Mailu and ONLYOFFICE Docs with Docker?
Mailu: yes. ONLYOFFICE Docs: yes.