# EMQ X Broker - High Performance MQTT Message Broker
EMQ X Broker R3.2 is a distributed, massively scalable, highly extensible MQTT message broker written in Erlang/OTP.
EMQ X Broker is previously known as emqtt, since R3.1, the name is officially changed to EMQ X Broker.
EMQ X Broker supports MQTT V3.1/V3.1.1 and V5.0 protocol standards. With the plugins, it can support MQTT-SN, WebSocket, CoAP, LwM2M, Stomp and other proprietary protocols based on TCP/UDP.
EMQ X works as single broker node or cluster. It provides scalable, reliable, MQTT message interconnection for IoT, IoV, M2M, Smart Hardware and Mobile Messaging Applications.
MQTT-SN and CoAP plugins are released in 2.0-RC.1, LwM2M and LoRaWan are released in 3.0.
EMQ X Support and Contact:
|Homepage:||https://www.emqx.io (opens new window)|
|Project:||https://github.com/emqx/emqx (opens new window)|
|weibo:||http://weibo.com/emqtt (opens new window)|
|Company:||Hangzhou EMQ Technologies Co., Ltd.|
|contact:||firstname.lastname@example.org < email@example.com >|