Open source mqtt projects
Every project in the registry tagged mqtt, ranked by real GitHub adoption.
Local control smart home automation with privacy first
NVR with realtime local object detection for IP cameras
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
A self-hosted data logger for your Tesla 🚘 [main maintainer=@JakobLichterfeld]
Free open source home automation system for Linux, Windows, Raspberry Pi. Supports Z-Wave, Zigbee, MQTT, and 150+ devices.
High-performance multi-data-source database client — ~30MB, AI & MCP ready, zero Electron bloat. | 高性能多数据源数据库客户端：约 30MB，AI 与 MCP 就绪，告别 Electron 膨胀。
Related tags
Frequently asked questions
How many open source mqtt projects are there?
This registry tracks 6 projects tagged mqtt, with 159,113 GitHub stars between them. The most-adopted is Home Assistant at 90,654 stars.
Are these mqtt projects free to use?
Yes — 6 of the 6 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which mqtt project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these mqtt projects still maintained?
6 of the 6 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.