1.eclipse-mosquitto / mosquittoEclipse Mosquitto - An open source MQTT brokermqttbrokermosquittoeclipse-iotiotmessaging+3 moreCOther license11K total2.7K forks+28 starsfrom 11,306 · score 3.37
2.cesanta / mongooseEmbedded web server, with TCP/IP network stack, MQTT and Websocketwebsocketmqttembeddedwebserverweb-serveriot+5 moreCOther license13K total3K forks+7 starsfrom 13,117 · score 2.08
3.nanomq / nanomqAn ultra-lightweight and blazing-fast Messaging Bus/MQTT Broker for Edge & SDVmqttmqtt-brokeriot-edgenngaioactor-model+14 moreCMIT2.7K total324 forks+4 starsfrom 2,650 · score 1.61
4.LiamBindle / MQTT-CA portable MQTT C client for embedded systems and PCs alike.mqtt-clientpublisher-subscribercportablemqttsimpleCMIT900 total310 forks+3 starsfrom 897 · score 1.39
5.martin-ger / esp_mqttMQTT Broker/Bridge on the ESP8266mqtt-brokeresp8266mqtt-bridgearduinoCMIT310 total69 forks+1 starsfrom 309 · score 0.69