Are you new to MQTT? We host a public HiveMQ MQTT broker to make it easy for you to experiment with MQTT messages. For basic information about MQTT, check out our MQTT Essentials articles.
Public MQTT Broker
Our Public HiveMQ MQTT broker is open for anyone to use. Feel free to write an MQTT client that connects with this broker. We have a dashboard so you can see the amount of traffic on this broker. We also keep a list of MQTT client libraries that can be used to connect to HiveMQ.
You can access the broker at:
Broker:
broker.hivemq.com TCP Port:
1883 Websocket Port:
8000 
For an in-depth evaluation of HiveMQ, visit our Try HiveMQ page.