QR & barcode guides

Clear, practical articles on scanning codes, staying safe online, and getting the most from every symbology.

How to Scan a QR Code on Any Device (2026 Guide)

Step-by-step instructions for scanning QR codes on iPhone, Android, Windows and Mac — using your camera, a photo, or a screenshot.

Already have the QR code saved as an image? Learn how to decode it from a photo or screenshot in seconds, privately, without your camera.

QR codes can hide malicious links. Learn how "quishing" attacks work and how to check a QR code link before you open it.