head to head · open source
OpenMQTTGateway vs supervisor
OpenMQTTGateway has 4,117 GitHub stars, 910 forks, 48 open issues and last shipped 17 days ago. supervisor has 2,252 stars, 823 forks, 109 open issues and last shipped 2 days ago. OpenMQTTGateway leads on adoption by 83% (4,117 vs 2,252 stars). OpenMQTTGateway is written in C++ under GPL-3.0; supervisor is written in Python under Apache-2.0. OpenMQTTGateway has attracted 22% as many forks as stars, supervisor 37%. supervisor 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 | supervisor | |
|---|---|---|
| GitHub stars | ★ 4.1K | ★ 2.3K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | C++ | Python |
| Last push | 2026-10-19 | 2026-11-03 |
| Forks | ⑂ 910 | ⑂ 823 |
| 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 supervisor if
- You want the supervisor feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and supervisor 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 supervisor
Home Assistant Supervisor First private cloud solution for home automation Home Assistant (former Hass.io) is a container based system for managing your Home Assistant Core installation and related applications. The system is controlled via Home Assistant which communicates with the Supervisor. The Supervisor provides an API to manage the installation. This includes changing network settings or installing and updating software. Installation Installation instructions can be found at Development For small changes and bugfixes you can just follow this, but for significant changes open a RFC first. Development…
read the full supervisor overview →
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Frequently asked questions
Is OpenMQTTGateway or supervisor more popular?
OpenMQTTGateway has 4,117 GitHub stars and supervisor has 2,252. OpenMQTTGateway has the larger community by that measure.
Are OpenMQTTGateway and supervisor free?
Both are open source. OpenMQTTGateway is licensed under GPL-3.0 and supervisor under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenMQTTGateway and supervisor?
OpenMQTTGateway is written in C++ and supervisor in Python. 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 supervisor?
Choose OpenMQTTGateway if you want the larger community (4,117 stars) or its GPL-3.0 licence terms. Choose supervisor if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.