MQTTGO Server: mqttgo.io TCP Port: 1883 / 8883(TLS) WebsocketPort: 8000 ESP32 mqttgo.io 1883 (http) 8883 (https) MQTT.js 網頁 ws://mqttgo.io:8000/mqtt wss://broker.mqttgo.io:8084/mqtt

HiveMQ Server: broker.hivemq.com TCP Port: 1883 WebsocketPort: 8000 ESP32 broker.hivemq.com 1883 (http) MQTT.js 網頁 ws://broker.hivemq.com:8000/mqtt wss://broker.hivemq.com:8884/mqtt

Mosquitto Server: test.mosquitto.org TCP Port: 1883 / 8883(TLS) WebsocketPort: 8080 / 8081(TLS) ESP32 test.mosquitto.org 1883 (http) 8883 (https) MQTT.js 網頁 ws://test.mosquitto.org:8080/mqtt wss://test.mosquitto.org:8081/mqtt

EMQX Server: broker.emqx.io TCP Port: 1883 / 8883(TLS) WebsocketPort: 8083 / 8084(TLS) ESP32 broker.emqx.io 1883 (http) 8883 (https) MQTT.js 網頁 ws://broker.emqx.io:8083/mqtt wss://broker.emqx.io:8084/mqtt