This page contains list of public MQTT broker address what you can use to test your client connections without installing MQTT Broker on your computer/server. Please keep in mind that none of the free to use public Brokers guarantee 24/7 service and don’t use security related application on public services.
Free to use Public Brokers – Without signup required
| Address | mqtt.eclipse.org |
| Port | 1883 |
| Websocket port | 80 |
| SSL port | 443 |
| Info | https://iot.eclipse.org/getting-started/#sandboxes |
| Address | test.mosquitto.org |
| Port | 1883 |
| Websocket port | 80 |
| SSL port | 8883 or 8884 |
| Info | https://test.mosquitto.org/ |
| Address | broker.hivemq.com |
| Port | 1883 |
| Websocket port | 8000 |
| SSL port | – |
| Info | http://www.mqtt-dashboard.com/ |
| Address | mqtt.fluux.io |
| Port | 1883 |
| Websocket port | – |
| SSL port | 8883 |
| Info | https://fluux.io/ |
Free Public Brokers – Signup Required to use!
| Address | mqtt.flespi.io |
| Port | 1883 |
| Websocket port | 80 or 443 |
| SSL port | 8883 |
| Signup | https://flespi.com/mqtt-broker |
| Address | mqtt.dioty.co |
| Port | 1883 |
| Websocket port | 8080 or 8880 |
| SSL port | 8883 |
| Signup | http://www.dioty.co/ |
Private MQTT Brokers
| Name | Microsoft Azure |
| Information | https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-mqtt-support |
| Name | Amazon AWS |
| Information | https://docs.aws.amazon.com/iot/latest/developerguide/mqtt.html |
| Name | CloudMQTT |
| Information | https://www.cloudmqtt.com/plans.html |
