You don't need your phone to open a QR code. You probably already know how to scan a QR code with your phone. It's simple enough: just open the camera app, point your phone at the code, and tap ...

Scanning a QR code without your phone requires a little help from Google or a webcam.

There are plenty of ways to scan QR codes on a laptop, but you may not realize how easy it is to do with a little help from software or apps.