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.

Your Android or iPhone can probably already scan QR codes. Here's how to do it no matter what phone you have.