To add contact, connect to wifi, call, send email, sms just scan a QR code generated through QR Code Generator. Text, website, pay through UPI/VPA and never ending list of things can be converted to QR.
Q. Do you want to open the website which is opened in a device (say laptop) on another device (say mobile) but don’t want to type the whole URL again?
A. Generate an equivalent QR code and scan it through device where you want to open it (mobile). It’s as simple as that. All you need to do is a QR scanner in that device.