This is a very early/incomplete/broken example of MQTT over Websockets for test.mosquitto.org. Play around with the buttons below, but don't be surprised if it breaks or isn't very pretty. If you want to develop your own websockets/mqtt app, use the url ws://test.mosquitto.org/mqtt , use subprotocol "mqtt" (preferred) or "mqttv3.1" (legacy) and binary data. Then just treat the websocket as a norma