TECH How to scan a QR code with your iPhone or Android phone (no apps needed) QR codes are those pixelated squares you see in restaurants, advertisements, stores, food packaging, business cards ...

QR codes are easy to use, if you know how to access the information they contain and have an internet connection.

Scanning QR codes on your phone doesnt always require a second device. Know how to scan QR codes using built-in tools, apps, or online decoders.