QR codes

 

These 3D-printed objects have scannable barcodes that you can’t see

By Charlotte Hu

 /  Jan 28, 2022

 

Don’t get scammed by fake QR codes

By Charlotte Hu

 /  Jan 17, 2022

 

United fliers can soon use PayPal’s new QR codes to buy chips and booze in the sky

By Charlotte Hu

 /  Oct 6, 2021

 

QR codes are a smart way to share data. Here’s how to make your own.

By David Nield

 /  May 27, 2021

 

QR codes are everywhere now. Here’s how to use them.

By David Nield

 /  May 25, 2021