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 ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

Scanning a QR code with your phone is a common request, and should be simple, right? But it's not always as obvious how to do it as it should be. Read on for straightforward, illustrated instructions ...