Nextcloud Groupware 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?
Nextcloud Groupware
Mail, calendar and contacts bundle for Nextcloud
VS
Kontact
Integrated personal information manager for KDE
| Feature | Nextcloud Groupware | Kontact |
|---|---|---|
| Category | Groupware | Groupware |
| License | AGPL-3.0 | GPL-2.0 |
| Language | JavaScript | C++ |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 512 MB |
| Deployment | docker, bare-metal, source | binary, source |
| GitHub stars | ★ 1,169 | ★ 200 |
| First released | 2016 | 2004 |
| Replaces | Microsoft 365, Google Workspace | Microsoft Outlook |
Why pick each one
Choose Nextcloud Groupware if…
- Tight Nextcloud integration
- Standards-based sync
Choose Kontact if…
- Released under the GPL-2.0 license
- Written in C++
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is Nextcloud Groupware or Kontact better?
Neither is universally better. Nextcloud Groupware has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Nextcloud Groupware and Kontact free and open-source?
Yes. Nextcloud Groupware is licensed under AGPL-3.0 and Kontact under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Nextcloud Groupware and Kontact with Docker?
Nextcloud Groupware: yes. Kontact: check the project docs for container support.