QR Code (abbreviated from Quick Response Code) is two-dimensional code, first designed for the automotive industry. Recently, the system has become popular outside of the industry due to its fast readability and large storage capacity compared to standard UPC barcodes.

QR Codes can store Uniform Resource Locators (URLs). Users with a camera phone equipped with the correct reader application can scan the image of the QR Code to display text, contact information, connect to a wireless network, or open a web page in the telephone's browser. QR Codes may also be linked to a location to track where a code has been scanned.