What are QR Codes?

QR codes (QR for Quick Response) are 2D codes which contain information that can be read by a QR code reader. Readers can be downloaded to mobile devices with a camera and web capabilities. QR codes are often used to link the user to a web address, but can also contain phone numbers to make a phone call or send a SMS text message, or enter text on to your mobile device.

How is a QR code made?

A QR code is made by entering the target web address, phone number, or text into a QR Code generator. Some options include, QR Stuff, QR Code Generator, and Kaywa QR Code (be sure to select static for the type to get free QR codes). These sites allow users to create free QR codes, but often recommend additional options that come with paid subscriptions. It is possible to make free, basic QR codes on these sites.

How do I get a QR reader for my mobile device?

  • The Apple App Store, Google Play Store, and Amazon App Store all have a variety of free and low-cost QR Code reader apps.
  • iPhones and iPads with iOS 11 and later can simply use the built-in camera app to read QR codes. Some Android devices will have this capability, but not all.

Where can I find more information on QR codes?

  • The QR Code is a registered trademark of Denso Wave Incorporated. See their website for more technical information about the codes, and an interesting FAQ section.
  • Mobile-Barcodes: This site provides a useful explanation of how QR codes work, as well as a bit of history behind the codes.