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7.0K Stars 1.3K Forks Apache License 2.0 4.4K Commits 295 Opened issues


EMQ X Broker - Scalable Distributed MQTT Message Broker for IoT in 5G Era

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EMQ X Broker

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The best IoT MQTT open source team looks forward to your joining

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EMQ X broker is a fully open source, highly scalable, highly available distributed MQTT messaging broker for IoT, M2M and Mobile applications that can handle tens of millions of concurrent clients.

Starting from 3.0 release, EMQ X broker fully supports MQTT V5.0 protocol specifications and backward compatible with MQTT V3.1 and V3.1.1, as well as other communication protocols such as MQTT-SN, CoAP, LwM2M, WebSocket and STOMP. The 3.0 release of the EMQ X broker can scaled to 10+ million concurrent MQTT connections on one cluster.


The EMQ X broker is cross-platform, which supports Linux, Unix, macOS and Windows. It means EMQ X can be deployed on x86_64 architecture servers and ARM devices like Raspberry Pi.

Installing via EMQ X Docker Image

docker run -d --name emqx -p 1883:1883 -p 8083:8083 -p 8883:8883 -p 8084:8084 -p 18083:18083 emqx/emqx

Installing via Binary Package

Get the binary package of the corresponding OS from EMQ X Download page.

Build From Source

The EMQ X broker requires Erlang/OTP R21+ to build since 3.0 release.

git clone -b v4.0.0

cd emqx-rel && make

cd _build/emqx/rel/emqx && ./bin/emqx console

Quick Start

# Start emqx
./bin/emqx start

Check Status

./bin/emqx_ctl status

Stop emqx

./bin/emqx stop

To view the dashboard after running, use your browser to open: http://localhost:18083


Visiting EMQ X FAQ to get help of common problems.


The EMQ X Roadmap uses Github milestones to track the progress of the project.

Community, discussion, contribution, and support

You can reach the EMQ community and developers via the following channels: - Slack - Twitter - Facebook - Reddit - Forum - Blog

Please submit any bugs, issues, and feature requests to emqx/emqx.

MQTT Specifications

You can read the mqtt protocol via the following links:

MQTT Version 3.1.1

MQTT Version 5.0



Apache License 2.0, see LICENSE.

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