QR Codes or Quick Response Codes are usually square images that are made up of dots and squares to represent binary code. They can be used used to direct users to web pages, download apps, and send and receive payment information. You scan them with your smartphone. I don't know if your phone can automatically detect them or you might have to download some QR scanner app.
If you have a vaccine passport, you'll notice it is a QR Code.
What if you want to generate your own codes? Then go here:
This site offers free generation of codes. You could create a basic one without signing up but creating an account will give you more options. I did not create an account at this time.
I'm going to make a code for hitanykey.x10host.com
Where it says enter your website, text or drop a file here I put in http://hitanykey.x10host.com
Then I picked a frame. The first three you can use without an account so I just picked the first.
Then you click on the Download button, it gives you a message about signing up for more customization options and at the top a message that Your QR Code is being generated and Please do not refresh or exit.
Then when prompted, save it, give it a name and choose the folder to save it in.
Here's the QR Code that takes you to http://hitanykey.x10host.com
I've come across a program that you can install on your computer to read QR Codes it's called Code Two QR Code Desktop Reader & Generator.
Download here: www.codetwo.com/downloads/freeware/
Not only can this program read QR Codes it can generate them. But first, lets see if the web site generator created a proper QR Code. Unfortunately, this program does not support drag and drop so I clicked on the top menu button From file and selected the downloaded QR Code and in bottom section marked QR code text: appeared http://hitanykey.x10host.com
Now lets see it generate a code. I clicked on the top menu button that says Generate mode on. It turns green and then in the bottom text box, that's where I have to put the info to be coded.
As soon as you type in the text it's very quick. So Now I can copy to clipboard or save it as a file on my hard drive. Pretty simple to use.
There have been some concerns about security so just don't scan codes if you don't know where they lead. If you are concerned about the security of QR Codes, read here: