OpenMQTTGateway vs Zigbee2MQTT Assistant

A side-by-side comparison of two self-hosted home automation options — licensing, setup difficulty, resource needs, and what each one replaces.

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FeatureOpenMQTTGatewayZigbee2MQTT Assistant
CategoryHome AutomationHome Automation
LicenseGPL-3.0MIT
LanguageC++C#
Setup difficultyMediumEasy
Min. RAM64 MB128 MB
Deploymentbare-metal, binarydocker
GitHub stars★ 4,073★ 448
First released20162019
ReplacesSmartThings HubSmartThings Hub

Why pick each one

Choose OpenMQTTGateway if…

  • Released under the GPL-3.0 license
  • Active community (4.1k GitHub stars)
  • Written in C++
  • Tiny footprint — runs in 64 MB RAM
OpenMQTTGateway details

Choose Zigbee2MQTT Assistant if…

  • Released under the MIT license
  • Easy to set up — beginner-friendly
  • First-class Docker support for quick deployment
  • Written in C#
Zigbee2MQTT Assistant details

Frequently asked questions

Is OpenMQTTGateway or Zigbee2MQTT Assistant better?

Neither is universally better. OpenMQTTGateway has the larger community, while Zigbee2MQTT Assistant is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are OpenMQTTGateway and Zigbee2MQTT Assistant free and open-source?

Yes. OpenMQTTGateway is licensed under GPL-3.0 and Zigbee2MQTT Assistant under MIT. Both can be self-hosted at no software cost.

Can I run OpenMQTTGateway and Zigbee2MQTT Assistant with Docker?

OpenMQTTGateway: check the project docs for container support. Zigbee2MQTT Assistant: yes.

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