QR codes are used for everything from opening a restaurant menu to making payments: just point your camera at the QR code, and your phone will automatically open the relevant page. But what ...

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 can house a whole lot of data, from the URL of a webpage or service, to where to directly download an app. Here's how to scan them.

You can use your iPhone to scan documents, QR codes, and other files using the Notes app and your camera.

Bar codes store information along one axis, horizontally. QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data. That extra amount of ...

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.

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other ...