EMQX vs Zwave-JS Server
A side-by-side comparison of two self-hosted home automation options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
EMQX
Scalable MQTT broker
VS
Zwave-JS Server
Small server wrapping the Z-Wave JS driver over WebSocket
| Feature | EMQX | Zwave-JS Server |
|---|---|---|
| Category | Home Automation | Home Automation |
| License | Apache-2.0 | Apache-2.0 |
| Language | Erlang | TypeScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 128 MB |
| Deployment | docker | docker, binary |
| GitHub stars | ★ 16,599 | ★ 162 |
| First released | 2026 | 2021 |
| Replaces | — | SmartThings |
Why pick each one
Choose EMQX if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Mature project with 16.6k GitHub stars
- Written in Erlang
Frequently asked questions
Is EMQX or Zwave-JS Server better?
Neither is universally better. EMQX has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are EMQX and Zwave-JS Server free and open-source?
Yes. EMQX is licensed under Apache-2.0 and Zwave-JS Server under Apache-2.0. Both can be self-hosted at no software cost.
Can I run EMQX and Zwave-JS Server with Docker?
EMQX: yes. Zwave-JS Server: yes.