The QR Tiger QR Code Generator, an ad-free QR code scanner, and creator, lets you create QR codes with images for links, URLs, contacts, text, Wi-Fi, business cards, applications, and social accounts.

QR codes are used as a call-to-action tool to advertise websites or events, to replace paper menus in restaurants, as access keys to holiday homes (b&b, for example), and for many other purposes. How ...

So, if you see a QR code at a restaurant or business, you could scan it without Wi-Fi or a cellular connection. Free QR Scanner also has a Scanner History that you can view as well.

Anyone with a smartphone can download a free QR reader application and scan the codes using the phone's camera.

Android's built-in QR code reader now automatically zooms in on QR codes to make them much easier to scan.