Cozy vs Kopano Groupware Core
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
Kopano Groupware Core
Open-source collaboration platform with Outlook support
| Feature | Cozy | Kopano Groupware Core |
|---|---|---|
| Category | Groupware | Groupware |
| License | AGPL-3.0 | AGPL-3.0 |
| Language | Go | C++ |
| Setup difficulty | Hard | Hard |
| Min. RAM | 1,024 MB | 2,048 MB |
| Deployment | docker, source | docker, bare-metal |
| GitHub stars | ★ 1,272 | ★ 60 |
| First released | 2016 | 2016 |
| Replaces | Google Workspace | Microsoft Exchange |
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 Kopano Groupware Core if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in C++
Frequently asked questions
Is Cozy or Kopano Groupware Core better?
Neither is universally better. Cozy has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are Cozy and Kopano Groupware Core free and open-source?
Yes. Cozy is licensed under AGPL-3.0 and Kopano Groupware Core under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Cozy and Kopano Groupware Core with Docker?
Cozy: yes. Kopano Groupware Core: yes.