The PayPal app can help you pay for things at stores, farmers markets and just about anywhere else using QR codes. We walk you through how to use it.

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.

Here's how to scan a QR code on your iPhone or Android phone. Many phones have QR code scanners, but if yours doesn't, we also recommend some apps to help.