Quick Response (QR) codes are two-dimensional images that were originally developed and patented by Toyota. They are commonly used to encode large amounts of data that can then be read quickly and accurately by mobile devices such as smartphones and tablets. QR codes have become ubiquitous in recent years, due to the widespread availability of digital scanning technology and the effortless interchangeability of the codes.

A traditional barcode uses a vertical strip to store data and is limited in carrying around 20-25 characters. In contrast, QR codes are composed of black and white modular squares that can carry up to 7089 numeric, 404 Kanji or 1760 bytes of text. They are often used to display product pricing and descriptive information as well as customer instructions. QR codes can also be used to create hyperlinks for cross-platform website visits.

QR codes are most commonly used to provide product information and improve commercial processes, but they can also be used for a broad range of applications. For example, they enable users to process payments and wire funds to other wallets quickly and securely, via their smartphones. Additionally, some websites and applications use QR codes to log in and authenticate users.

QR codes come in three distinct versions (QR-A, QR-B and QR-C), each with different capabilities. The most popular version is QR-C, also known as an ‘amount’ code, which is used to complete payment transactions. Including with various points of sale (POS) platforms and other financial services.

One of the key advantages of using QR codes is that they are customizable, thereby allowing businesses to tailor them to specific needs. For example, they can be edited to include the company name or logo as well as an authentication code that prevents someone else from scanning or using the QR code. This adds an extra layer of security.

Quick Response (QR) codes allow businesses to quickly and easily capture, store, and retrieve data, while also providing digital security features. They are increasingly being used in a variety of applications from cryptocurrency wallets to point-of-sale transactions and customer management systems. With the availability of technology and its broad range of uses, the use of QR codes is only likely to expand.