HiveMQ Adafruit IO ActiveMQ Akiro MQTT ActiveMQ Artemis RabbitMQ Mosquitto flespi IBM MessageSight Mosca. More recently by the same author: Aedes MQTT Dashboard Eclipse IoT VerneMQ Solace CloudMQTT EMQ X. Scalable and Reliable Real-time MQTT 5.0 Message Broker for IoT in 5G Era. Wave vertx-mqtt-broker JoramMQ Moquette MQTT MQTTnet. Embedded MQTT broker, C# MyQttHub Jmqtt. MQTT broker written in Ja