Use the built-in camera app on your Android device to scan a quick response (QR) code, or use a code scanner on older models.

QR codes make it possible to scan an image with your phone’s camera to open a link. In the early days of Android, the easiest way to post links to Android apps was with QR codes, which is why ...

Google has finally started rolling out Android's redesigned QR code scanner — a year after we first spotted it in a teardown.

They can be great time-savers, but they're not always obvious in how to use them, particularly if you have an older Android phone. Here's how to scan a QR code with any phone.