The web client will simply work as an extension of the app on your phone. It will mirror all conversations, giving you the ability to use Whatsapp on your desktops and laptops through Google Chrome browser. Here’s how it works.
Simply go here from Google Chrome and scan the QR code you see from Whatsapp on your smartphone. That’s pretty much it! Keep in mind you’ll need the latest version of Whatsapp for this to work, the update should roll out globally very soon so keep an eye out.
It might be obvious but you need to stay connected to the internet for the web client to work.