Home Assistant vs Zigbee2MQTT
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
VS
Zigbee2MQTT
Bridge Zigbee devices to MQTT without vendor hubs
| Feature | Home Assistant | Zigbee2MQTT |
|---|---|---|
| Deploy effort | ≈5-minute setup | Under-an-hour setup |
| Health score | 100 · Excellent | 95 · Excellent |
| Category | Home Automation | Home Automation |
| License | Apache-2.0 | GPL-3.0 |
| Language | Python | TypeScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 256 MB |
| Deployment | docker, bare-metal, one-click | docker, bare-metal |
| GitHub stars | ★ 91,123 | ★ 15,661 |
| First released | 2013 | 2018 |
| Replaces | SmartThings, Google Home | SmartThings |
What are Home Assistant and Zigbee2MQTT?
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
Zigbee2MQTT
Zigbee2MQTT bridges Zigbee devices to MQTT, allowing them to be used without proprietary vendor hubs or bridges. It targets smart home users wanting vendor-neutral Zigbee control. It is deployed via Docker.
- Supports thousands of Zigbee devices
- No vendor hub required
- MQTT integration
- Web-based control panel
Home Assistant vs Zigbee2MQTT: key differences
Home Assistant is written in Python, while Zigbee2MQTT is built with TypeScript. Licensing differs — Apache-2.0 for Home Assistant versus GPL-3.0 for Zigbee2MQTT. Zigbee2MQTT is the lighter option, starting around 256 MB of RAM against 1,024 MB for Home Assistant. Home Assistant is the more established project (first released 2013), while Zigbee2MQTT arrived in 2018. Home Assistant has the considerably larger community, at 91,123 GitHub stars versus 15,661.
Why pick each one
Choose Home Assistant if…
- Huge device support
- Local control and privacy
- Very active community
Watch out for
- Learning curve for automations
- Occasional breaking updates
Choose Zigbee2MQTT if…
- Frees devices from vendor hubs
- Wide device support
- Local control
Watch out for
- Needs a Zigbee coordinator
- Pairing can be finicky
Frequently asked questions
Is Home Assistant or Zigbee2MQTT 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 Home Assistant and Zigbee2MQTT free and open-source?
Yes. Home Assistant is licensed under Apache-2.0 and Zigbee2MQTT under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Home Assistant and Zigbee2MQTT with Docker?
Home Assistant: yes. Zigbee2MQTT: yes.
Which is lighter on resources, Home Assistant or Zigbee2MQTT?
Zigbee2MQTT 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.