Free QR code generator and scanner
Some of my students have been working through the hacky easter challenges where they have to solve some pretty challenging problems in order to unlock a QR code that gives them the password for that challenge. That’s fine if you’ve got a smartphone or tablet handy, but sometimes it’s useful to be able to scan a QR code when you’ve only got a laptop or desktop.
This tool lets you generate a QR image but also lets you copy and paste an image of a QR code and it’ll scan it for you in your browser.
Have a go here: http://tools.withcode.uk/qr