And if you’re using a phone with Android 10, you can follow this guide to create a QR code right from your device’s settings.

Enable this flag to turn on the QR code generator in Edge browser. QR code contains data for a locator, identifier, or tracker that points to a website or application.

QR codes are convenient because they can be scanned with a smartphone camera to access a website URL or used as secure login information, but because they are generally simple, black and white ...

If you find yourself having to give out your Wi-Fi password a lot, a nice hack is to turn it into a QR code and post it somewhere where visitors can scan it.