EMQX
Scalable MQTT broker. Connect 100M+ IoT devices in one single cluster, move and process real-time IoT data with 1M msg/s throughput at 1ms latency.
- Home Automation & IoT
- Erlang
- Apache-2.0
- Docker
- Actively maintained
GitHub stats
- GitHub stars
- 16,777
- Forks
- 2,555
- Open issues
- 154
- Commits, last 12 months
- 6,842
- Last commit
- Oct 5, 2026
- Latest release
- 6.3.1Sep 18, 2026
- Created
- Dec 17, 2012
Data from the GitHub API, refreshed daily.
About EMQX
Scalable MQTT broker. Connect 100M+ IoT devices in one single cluster, move and process real-time IoT data with 1M msg/s throughput at 1ms latency. EMQX is open source under the Apache-2.0 license and written mainly in Erlang, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 16,777 stars and 2,555 forks on GitHub, with 6,842 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.
Topics
- mqtt
- iot
- mqtt-broker
- erlang
- iot-middleware
- broker
- m2m
- pubsub
- messaging
- coap
Repository preview
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What is EMQX?
EMQX is a free, open-source app you can host on your own server, listed in our Home Automation & IoT category. Scalable MQTT broker. Connect 100M+ IoT devices in one single cluster, move and process real-time IoT data with 1M msg/s throughput at 1ms latency. The source code lives at github.com/emqx/emqx, where it has 16,777 stars.
Is EMQX free and open source?
Yes. EMQX is open-source software released under the Apache-2.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run EMQX with Docker?
Yes. EMQX provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to EMQX?
Popular open-source alternatives to EMQX include Home Assistant, Tasmota and Node RED.
Is EMQX actively maintained?
The most recent commit to EMQX was on Oct 5, 2026 with 6,842 commits in the past twelve months. The latest release is 6.3.1, published Sep 18, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.