Home Assistant vs Pimatic
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
Pimatic
Node.js home automation framework for the Raspberry Pi
| Feature | Home Assistant | Pimatic |
|---|---|---|
| Deploy effort | ≈5-minute setup | Read-the-docs project |
| Health score | 100 · Excellent | 11 · At risk |
| Category | Home Automation | Home Automation |
| License | Apache-2.0 | GPL-2.0 |
| Language | Python | CoffeeScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 256 MB |
| Deployment | docker, bare-metal, one-click | bare-metal, source |
| GitHub stars | ★ 91,123 | ★ 598 |
| First released | 2013 | 2013 |
| Replaces | SmartThings, Google Home | SmartThings |
What are Home Assistant and Pimatic?
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
Pimatic
Pimatic is an open-source home automation framework built on Node.js that runs on low-power devices such as the Raspberry Pi. Plugins add device support, and a rule engine plus a mobile-friendly web UI handle control and automation.
- Plugin-based device support
- Rule engine
- Mobile-friendly web UI
- Runs on Raspberry Pi
Home Assistant vs Pimatic: key differences
Home Assistant is written in Python, while Pimatic is built with CoffeeScript. Licensing differs — Apache-2.0 for Home Assistant versus GPL-2.0 for Pimatic. Pimatic 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 598. Home Assistant lists first-class Docker deployment; Pimatic does not.
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 Pimatic if…
- Lightweight
- Simple rule system
Watch out for
- Development has slowed
- Smaller community
Frequently asked questions
Is Home Assistant or Pimatic 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 Pimatic free and open-source?
Yes. Home Assistant is licensed under Apache-2.0 and Pimatic under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Home Assistant and Pimatic with Docker?
Home Assistant: yes. Pimatic: check the project docs for container support.
Which is lighter on resources, Home Assistant or Pimatic?
Pimatic 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.