WhatsApp rolled out the web version that will turn your Google Chrome browser into a WhatsApp window.
It’s basically a Web window and not a separate client. This means that it simply mirrors the WhatsApp on your phone and for that, you need to be connected to the internet in order to use it. Update your WhatsApp, you’ll find the WhatsApp Web in your respective menus. Now go to WhatsApp web page and scan the QR code from your phones and Voilà! you can type in your messages from the browser itself.