Domoticz vs Home Assistant
A side-by-side comparison of two self-hosted home automation options — licensing, setup difficulty, resource needs, and what each one replaces.
Home Assistant
Open-source home automation that puts privacy first
| Feature | Domoticz | Home Assistant |
|---|---|---|
| Deploy effort | Under-an-hour setup | ≈5-minute setup |
| Health score | 88 · Excellent | 100 · Excellent |
| Category | Home Automation | Home Automation |
| License | GPL-3.0 | Apache-2.0 |
| Language | C++ | Python |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | docker, bare-metal | docker, bare-metal, one-click |
| GitHub stars | ★ 3,811 | ★ 91,123 |
| First released | 2012 | 2013 |
| Replaces | SmartThings | SmartThings, Google Home |
What are Domoticz and Home Assistant?
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
Home Assistant
Home Assistant is an open-source home automation platform that integrates thousands of smart devices and runs automations locally. It targets anyone wanting private, vendor-neutral smart home control. It is deployed as an OS image, Docker, or supervised install.
- Integrates thousands of devices
- Local-first automations
- Add-on ecosystem
- Powerful dashboards
Domoticz vs Home Assistant: key differences
Domoticz is written in C++, while Home Assistant is built with Python. Licensing differs — GPL-3.0 for Domoticz versus Apache-2.0 for Home Assistant. Domoticz is the lighter option, starting around 256 MB of RAM against 1,024 MB for Home Assistant. Home Assistant has the considerably larger community, at 91,123 GitHub stars versus 3,811.
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 Home Assistant if…
- Huge device support
- Local control and privacy
- Very active community
Watch out for
- Learning curve for automations
- Occasional breaking updates
Frequently asked questions
Is Domoticz or Home Assistant better?
Neither is universally better. Home Assistant has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Domoticz and Home Assistant free and open-source?
Yes. Domoticz is licensed under GPL-3.0 and Home Assistant under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Domoticz and Home Assistant with Docker?
Domoticz: yes. Home Assistant: yes.
Which is lighter on resources, Domoticz or Home Assistant?
Domoticz has the smaller minimum footprint at 256 MB of RAM, compared to about 1,024 MB for Home Assistant. Real-world usage depends on library size, user count, and enabled features.