Every browser should have the ability to convert a page URL, any link on a page, or any selected text into a standard QR image on the fly. One problem is coming up with a standard. Microsoft wanted its own QR image, so it wasn’t going to offer a competing standard in its IE browser.
I installed a portable version of the Firefox browser on a USB stick, and added a QR plugin to it. So, if I were giving a presentation anywhere, I could plug in my USB stick, use my Firefox browser, with my QR and other plugins, and create QR images on the fly to be projected on the screen/wall for my audience to snag. I didn’t have to go through the hassle of creating each image and saving them somewhere.
I do not give many, or any presentations, and have not had the opportunity in a couple of years to use the browser installed on my USB stick.