HIGHLIGHTS Instagram allows you to share a QR code to help other people easily find your profile. You can also customise your QR code on Instagram. In this step-by-step guide, we’ll tell you how ...

Scanning a QR code without your phone requires a little help from Google or a webcam.

QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data. That extra amount of data is what makes QR codes so versatile.

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.