Cozy vs Group-Office
A side-by-side comparison of two self-hosted groupware options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Cozy
Personal cloud platform with contacts and calendar
VS
Group-Office
Web-based groupware and CRM with email and calendar
| Feature | Cozy | Group-Office |
|---|---|---|
| Category | Groupware | Groupware |
| License | AGPL-3.0 | AGPL-3.0 |
| Language | Go | PHP |
| Setup difficulty | Hard | Medium |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | docker, source | docker, bare-metal |
| GitHub stars | ★ 1,272 | ★ 275 |
| First released | 2016 | 2003 |
| Replaces | Google Workspace | Microsoft 365, Google Workspace |
Why pick each one
Choose Cozy if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Active community (1.3k GitHub stars)
- Written in Go
Choose Group-Office if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in PHP
Frequently asked questions
Is Cozy or Group-Office better?
Neither is universally better. Cozy has the larger community, while Group-Office is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Cozy and Group-Office free and open-source?
Yes. Cozy is licensed under AGPL-3.0 and Group-Office under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Cozy and Group-Office with Docker?
Cozy: yes. Group-Office: yes.