How to Scan a QR Code: iPhone, Android, Windows, Mac

QR codes are black-and-white squares that store information such as links, numbers, images, and so on. Newer smartphones have built-in QR readers right in the Camera app. If you're using a laptop or computer, you'll need to make sure you have a working webcam. Before you scan any QR codes, make sure you know their sources to avoid visiting malicious websites. This wikiHow will show you how to scan a QR code using your iPhone, Android, Windows, or Mac computer.

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