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 ...

If you'd like to add a QR code to your Web site or print one on another product (such as a business card or promotional T-shirt), there are free QR generator sites that will allow you to do this.

QR codes allow users to find your website from various sources. With a QR code, you can embed links to your business site on numerous types of both digital and print marketing materials.

QR codes can store around 4,000 characters of text, which can be a plain message, a link to a website, a file to download, or pretty much any other information you can think of.

QR codes are popular ways to scan menus, tickets, and apps. Here's how to do it from your Android phone or iPhone, and what the FCC says about it.