Kopano Groupware Core vs Kontact
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?
Kopano Groupware Core
Open-source collaboration platform with Outlook support
VS
Kontact
Integrated personal information manager for KDE
| Feature | Kopano Groupware Core | Kontact |
|---|---|---|
| Category | Groupware | Groupware |
| License | AGPL-3.0 | GPL-2.0 |
| Language | C++ | C++ |
| Setup difficulty | Hard | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, bare-metal | binary, source |
| GitHub stars | ★ 60 | ★ 200 |
| First released | 2016 | 2004 |
| Replaces | Microsoft Exchange | Microsoft Outlook |
Why pick each one
Choose Kopano Groupware Core if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in C++
Choose Kontact if…
- Released under the GPL-2.0 license
- Written in C++
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is Kopano Groupware Core or Kontact better?
Kontact is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Kopano Groupware Core if its specific feature set fits your needs better.
Are Kopano Groupware Core and Kontact free and open-source?
Yes. Kopano Groupware Core is licensed under AGPL-3.0 and Kontact under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Kopano Groupware Core and Kontact with Docker?
Kopano Groupware Core: yes. Kontact: check the project docs for container support.
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