You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

You don't need your phone to open a QR code. 25,219 people played the daily Crossword recently. Can you solve it faster than others?25,219 people played the daily Crossword recently. Can you solve it ...

QR codes are used for everything from opening a restaurant menu to making payments: just point your camera at the QR code, and your phone will automatically open the relevant page. But what happens ...