head to head · open source
OpenMQTTGateway vs domoticz
OpenMQTTGateway has 4,117 GitHub stars, 910 forks, 48 open issues and last shipped 17 days ago. domoticz has 3,830 stars, 1,161 forks, 24 open issues and last shipped 2 days ago. OpenMQTTGateway leads on adoption by 7% (4,117 vs 3,830 stars). OpenMQTTGateway is written in C++ under GPL-3.0; domoticz is written in C++ under GPL-3.0. OpenMQTTGateway has attracted 22% as many forks as stars, domoticz 30%. domoticz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (home-automation), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| OpenMQTTGateway | domoticz | |
|---|---|---|
| GitHub stars | ★ 4.1K | ★ 3.8K |
| License | GPL-3.0 | GPL-3.0 |
| Written in | C++ | C++ |
| Last push | 2026-10-19 | 2026-11-03 |
| Forks | ⑂ 910 | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenMQTTGateway if
- You weight community size — 4.1K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick domoticz if
- You want the domoticz feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches C++
- You evaluated both and domoticz fits your workflow better
About OpenMQTTGateway
OpenMQTTGateway aims to unify various technologies and protocols into a single firmware. This reduces the need for multiple physical bridges and streamlines diverse technologies under the widely used MQTT protocol. Sponsors Documentation The documentation is here New to OpenMQTTGateway? Follow the Getting Started guide to flash a board from your browser and see your first sensor data in about 15 minutes. The reference sheet, with the list of all functions, pinouts is here Upload Upload OpenMQTTGateway directly from the upload page (no additional software required) or build your own configuration with PlatformIO…
read the full OpenMQTTGateway overview →
About domoticz
Domoticz — Free Open Source Home Automation System Domoticz is a free, open source home automation system for Linux, Windows, macOS, and Raspberry Pi. Monitor and control lights, switches, and sensors for temperature, rain, wind, UV, energy, gas, water and much more. Supports 150+ hardware devices including Z Wave, Zigbee, MQTT, Philips Hue, and RFXCOM. Notifications and alerts can be sent to any mobile device. Multi platform: Linux/Windows/macOS/Raspberry Pi Runs on Linux, Windows, macOS, FreeBSD, and embedded devices like Raspberry Pi and other ARM boards. The user interface is a scalable HTML5 web frontend…
read the full domoticz overview →
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Frequently asked questions
Is OpenMQTTGateway or domoticz more popular?
OpenMQTTGateway has 4,117 GitHub stars and domoticz has 3,830. OpenMQTTGateway has the larger community by that measure.
Are OpenMQTTGateway and domoticz free?
Both are open source. OpenMQTTGateway is licensed under GPL-3.0 and domoticz under GPL-3.0. Neither carries a licence fee.
What is the difference between OpenMQTTGateway and domoticz?
OpenMQTTGateway is written in C++ and domoticz in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenMQTTGateway or domoticz?
Choose OpenMQTTGateway if you want the larger community (4,117 stars) or its GPL-3.0 licence terms. Choose domoticz if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.