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 the link. What if you're on your computer, though?

You can still scan any QR code image using a free website—and it works on any device, including Windows and Mac. To get started, open the Web QR website on your device and tap the Camera icon.

Here’s how: Open the Camera app and hold your iPhone, so the QR code appears in the viewfinder. Your phone should recognize the QR code and give you a notification.

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

In iOS 11, the native camera app includes functionality that allows you to scan QR codes and access QR code content like URLs without having to download a third-party app. Open the Camera app on ...

QR codes are surrounded by blank space, the quiet zone, to help the computer determine where the QR code begins and ends. QR codes can include an optional logo in the middle.