Got a Wi-Fi network that you share with others? Perhaps at home, or at the office or another workplace? Here's a way to make it quick and simple for people to connect without having to enter a bewildering string of alphanumeric characters.
Next up, head over to https://qifi.org/, enter those details into the form and click Generate. Don't worry, none of your information is being sent to some shady server, all the work is done by your browser.
BINGO! Your QR code is generated. You can export or print the code and leave it somewhere convenient for people to scan. It works great with the built-in QR code scanner in iOS 13 - you just fire up the camera and point it at the code and if offers to connect.
For Android devices not running Android 10, things are a bit more complex, and third party barcode scanners, such as the inventively named Barcode Scanner or NeoReader.
For the small minority of who already have Android 10 bestowed on your phones (and the camera app on some Samsung handsets), you not only can scan Wi-Fi QR codes, but you can also create them.
Pretty cool feature.
For the ultra-paranoid, the QiFi website explains how to create these QR codes without using a browser. As you'd expect, the process is a bit more involved.