Kontact vs Open Web Calendar
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?
Kontact
Integrated personal information manager for KDE
VS
Open Web Calendar
Embed a web calendar into your own website
| Feature | Kontact | Open Web Calendar |
|---|---|---|
| Category | Groupware | File Sync & Storage |
| License | GPL-2.0 | GPL-2.0 |
| Language | C++ | Python |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 50 MB |
| Deployment | binary, source | bare-metal |
| GitHub stars | ★ 200 | ★ 330 |
| First released | 2004 | 2024 |
| Replaces | Microsoft Outlook | Google Agenda, Microsoft Outlook |
Why pick each one
Choose Kontact if…
- Released under the GPL-2.0 license
- Written in C++
- Lightweight — runs in 512 MB RAM
Choose Open Web Calendar if…
- Released under the GPL-2.0 license
- Easy to set up — beginner-friendly
- Written in Python
- Tiny footprint — runs in 50 MB RAM
Frequently asked questions
Is Kontact or Open Web Calendar better?
Open Web Calendar is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Kontact if its specific feature set fits your needs better.
Are Kontact and Open Web Calendar free and open-source?
Yes. Kontact is licensed under GPL-2.0 and Open Web Calendar under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Kontact and Open Web Calendar with Docker?
Kontact: check the project docs for container support. Open Web Calendar: check the project docs for container support.