Hi, I have the project to do an UDF for Google Chrome like the one existing for Mozilla Firefox. If it's done, it will also work for all browsers which supports WebSocket and addons. I have found an addon which do the WebSocket client, it can connect to a WebSocket server and send messages. You don't have to install the addon because this website does the job : http://websocket.org/echo.html In order to use it, fill the Location/URL with : ws://localhost:8080/ So I'm trying to make a WebSocket