As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open a ...

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons. QR codes are found everywhere from ...