• 2017-Eclipse Mosquitto : Eclipse Mosquitto is an open source (EPL/EDL licensed) message broker that implements the MQTT protocol versions 5.0, 3.1.1 and 3.1. Mosquitto is lightweight and is suitable for use on all devices from low power single board computers to full servers.

  • 2019-MQTTBox : Supercharge your IoT workflow with MQTTBox.

  • 2021-Zigbee2MQTT : Zigbee 🐝 to MQTT bridge 🌉, get rid of your proprietary Zigbee bridges 🔨

  • 2021-emqx : The world’s most scalable distributed MQTT broker with a high-performance real-time message processing engine, powering event streaming for IoT devices at massive scale.

  • vernemq : A distributed MQTT message broker based on Erlang/OTP. Built for high quality & Industrial use cases.