In most cases, Android devices come with a built-in QR code scanner. Android versions 8 and 9 can scan QR codes online without an app. On the other hand, some earlier Android versions have yet to receive the most recent update.

QR Code Scanner - ScanApp. Use ScanApp to scan QR codes or different types of Bar Codes on your web browser using camera or

on the device. Scanning is supported on PC, Mac, Android or IOS and works 100% free!