Domoticz vs openHAB
A side-by-side comparison of two self-hosted home automation options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Domoticz | openHAB |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 88 · Excellent | 79 · Good |
| Category | Home Automation | Home Automation |
| License | GPL-3.0 | EPL-2.0 |
| Language | C++ | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | docker, bare-metal | docker, bare-metal |
| GitHub stars | ★ 3,811 | ★ 1,142 |
| First released | 2012 | 2010 |
| Replaces | SmartThings | SmartThings, Google Home |
What are Domoticz and openHAB?
Domoticz
Domoticz is a lightweight home automation system for monitoring and configuring various devices like sensors, switches, and meters. It targets users wanting an efficient automation hub on modest hardware. It is deployed via Docker or packages.
- Runs well on low-power hardware
- Supports many sensor protocols
- Scripting and events
- Mobile-friendly UI
openHAB
openHAB is a vendor-neutral, open-source home automation platform that integrates many devices and technologies behind one system. It targets smart home enthusiasts wanting deep configurability. It is deployed via Docker or native packages.
- Hundreds of device bindings
- Powerful rule engine
- Runs fully offline
- Cross-platform
Domoticz vs openHAB: key differences
Domoticz is written in C++, while openHAB is built with Java. Licensing differs — GPL-3.0 for Domoticz versus EPL-2.0 for openHAB. Domoticz is the lighter option, starting around 256 MB of RAM against 1,024 MB for openHAB. OpenHAB is the more established project (first released 2010), while Domoticz arrived in 2012. Domoticz has the considerably larger community, at 3,811 GitHub stars versus 1,142.
Why pick each one
Choose Domoticz if…
- Very lightweight
- Good on Raspberry Pi
- Stable
Watch out for
- Dated interface
- Smaller community than Home Assistant
Choose openHAB if…
- Very flexible
- Vendor neutral
- Mature project
Watch out for
- Steep learning curve
- Heavier Java runtime
Frequently asked questions
Is Domoticz or openHAB better?
Domoticz is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider openHAB if its specific feature set fits your needs better.
Are Domoticz and openHAB free and open-source?
Yes. Domoticz is licensed under GPL-3.0 and openHAB under EPL-2.0. Both can be self-hosted at no software cost.
Can I run Domoticz and openHAB with Docker?
Domoticz: yes. openHAB: yes.
Which is lighter on resources, Domoticz or openHAB?
Domoticz has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for openHAB. Real-world usage depends on library size, user count, and enabled features.