head to head · open source
OpenMQTTGateway vs home-assistant-config
OpenMQTTGateway has 4,094 GitHub stars, 906 forks, 48 open issues and last shipped today. home-assistant-config has 2,026 stars, 178 forks, 5 open issues and last shipped 6 days ago. OpenMQTTGateway leads on adoption by 102% (4,094 vs 2,026 stars). OpenMQTTGateway is written in C++ under GPL-3.0; home-assistant-config is written in various languages under MIT. OpenMQTTGateway has attracted 22% as many forks as stars, home-assistant-config 9%. OpenMQTTGateway was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (home-assistant, 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 | home-assistant-config | |
|---|---|---|
| GitHub stars | ★ 4.1K | ★ 2.0K |
| License | GPL-3.0 | MIT |
| Written in | C++ | — |
| Last push | 2026-09-20 | 2026-09-14 |
| Forks | ⑂ 906 | ⑂ 178 |
| 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 home-assistant-config if
- You want the home-assistant-config feature set and don't need the biggest community
- You prefer the MIT license terms
- You evaluated both and home-assistant-config fits your workflow better
About OpenMQTTGateway
OpenMQTTGateway is an open source C++ gateway firmware for ESP8266 and ESP32 boards that connects local radio and sensor protocols to MQTT. It lives in the home automation ecosystem and is associated with Home Assistant, OpenHAB, NodeRed, and AWS IOT. The project aims to unify various technologies and protocols into a single firmware, reducing the need for multiple physical bridges.
read the full OpenMQTTGateway overview →
About home-assistant-config
home assistant config is a public repository containing the personal Home Assistant configuration of Franck Nijhof, the lead of the Home Assistant project. It lives in the Home Assistant ecosystem, an open source smart home platform that runs locally on hardware such as a Raspberry Pi and connects to over 2,000 devices and services without relying on cloud services.
read the full home-assistant-config overview →
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Frequently asked questions
Is OpenMQTTGateway or home-assistant-config more popular?
OpenMQTTGateway has 4,094 GitHub stars and home-assistant-config has 2,026. OpenMQTTGateway has the larger community by that measure.
Are OpenMQTTGateway and home-assistant-config free?
Both are open source. OpenMQTTGateway is licensed under GPL-3.0 and home-assistant-config under MIT. Neither carries a licence fee.
What is the difference between OpenMQTTGateway and home-assistant-config?
OpenMQTTGateway is written in C++ and home-assistant-config in various languages. 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 home-assistant-config?
Choose OpenMQTTGateway if you want the larger community (4,094 stars) or its GPL-3.0 licence terms. Choose home-assistant-config if its feature set, stack or MIT licence fits better. Both are self-hostable.