QR codes have been around for quite a while and my feeling is that they still haven’t become entirely mainstream. They haven’t died on the vine but I haven’t seem them become ubiquitous to the point where people don’t also feel the need to put plain text links or to where most people can interact with them easily. If I was still at my previous church and involved in youth work, I’d do a quick survey to find out but I wonder if even the ‘born with a smartphone’ generation use them without thinking?

If you do want to get a bit more insight into them, then the Project Nayuki site is a good one to visit – you can not only generate QR codes but see all the steps which go into converting a URL or other piece of text into that combination of light and dark areas that can be converted back by many camera apps and other software. You can either take a screengrab of the inline SVG image created there or use the related page to generate a downloadable image (and access the creator’s software libraries in a range of languages).