A QR Code is a square barcode. It
is simply a graphical representation of data. A QR Code reader app lets you scan
the QR Code using the built-in camera of your mobile phone, captures the data
and lets you do various things according to the type of data. For example, a QR
Code encoded with URL data can open a web/mobile page, image, YouTube video, or
other online content. A QR Code encoded with text data can display text. A QR
Code encoded with contact data can add a person's contact info to an address book.
A QR Code encoded with a street address or longitude/latitude coordinates can
display a location on Google Map. And so on...
can make and use QR Codes for personal and business purposes. It is a free and
open technology. Try making your own QR Codes using this free tool or at QRickit.com. Test them
using your own mobile device and then copy / download / print them to share and
use in creative ways.
* Most modern smartphones have a built-in QR Code reader. Just open your camera app and point it at the QR Code to scan.