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 ...

What if you’re on your computer, though? You could point your phone at the computer screen, but that inter-device dance isn’t necessary. You can open that code right from your laptop or desktop.

You can scan a QR code using the camera on your smartphone, tablet, or computer. Scanning QR codes lets you easily access websites, restaurant menus, videos, and more. Most smartphones have QR ...