Free MQTT Brokers

To run an MQTT based application you need to host an MQTT Broker (a server). In this post I will show you several free to use, open-source brokers.

Eclipse Mosquitto

Mosquitto MQTT Broker
Mosquitto MQTT Broker

Mosquitto by is a lightweight MQTT broker implementation with support MQTT versions 3.1.0, 3.1.1 and version 5.0.
The software is free to dowload from:

Installation guide:
Install Mosquitto MQTT Broker on Raspberry Pi


HiveMQ MQTT Broker
HiveMQ MQTT Broker

HiveMQ is an enterprise ready MQTT broker. HiveMQ is built to address some of the key technical challenges organizations face when building new IoT applications, including