Do you want to pay for coffee without tapping a grimy screen? Here’s how to use your iPhone or Android phone to scan QR codes.

Scan a QR code with your webcam Sometimes you have a QR code on a sheet of paper but your phone isn’t handy. Your laptop has a camera, though, and you can use it instead.

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

You can still scan any QR code image using a free website—and it works on any device, including Windows and Mac. To get started, open the Web QR website on your device and tap the Camera icon.