head to head · open source
OpenMQTTGateway vs gpt-home
OpenMQTTGateway has 4,117 GitHub stars, 910 forks, 48 open issues and last shipped 17 days ago. gpt-home has 652 stars, 68 forks, 0 open issues and last shipped 2 months ago. OpenMQTTGateway leads on adoption by 531% (4,117 vs 652 stars). OpenMQTTGateway is written in C++ under GPL-3.0; gpt-home is written in Python under GPL-3.0. OpenMQTTGateway has attracted 22% as many forks as stars, gpt-home 10%. 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 | gpt-home | |
|---|---|---|
| GitHub stars | ★ 4.1K | ★ 652 |
| License | GPL-3.0 | GPL-3.0 |
| Written in | C++ | Python |
| Last push | 2026-10-19 | 2026-09-13 |
| Forks | ⑂ 910 | ⑂ 68 |
| 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 gpt-home if
- You want the gpt-home feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and gpt-home 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 gpt-home
🏠 GPT Home 🤖💬 ChatGPT at home! Basically a better Google Nest Hub or Amazon Alexa home assistant. Built on the Raspberry P iusing LiteLLM and LangGraph. This guide will explain how to build your own. It's pretty straight forward. You can also use this as a reference for building other projects on the Raspberry Pi. Theoretically, the app should run on any linux system thanks to docker, but I can only vouch for the versions listed in the compatibility table. You should be able use any plug and play USB/3.5mm speaker or microphone as long as it's supported by ALSA or PortAudio. 📦 Integrations ✅ OpenAI ✅ Spotify…
read the full gpt-home overview →
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Frequently asked questions
Is OpenMQTTGateway or gpt-home more popular?
OpenMQTTGateway has 4,117 GitHub stars and gpt-home has 652. OpenMQTTGateway has the larger community by that measure.
Are OpenMQTTGateway and gpt-home free?
Both are open source. OpenMQTTGateway is licensed under GPL-3.0 and gpt-home under GPL-3.0. Neither carries a licence fee.
What is the difference between OpenMQTTGateway and gpt-home?
OpenMQTTGateway is written in C++ and gpt-home 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 gpt-home?
Choose OpenMQTTGateway if you want the larger community (4,117 stars) or its GPL-3.0 licence terms. Choose gpt-home if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.