A barcode is a sequence of elements (characters), grouped into a unique, ordered code that can be decoded by an application. It is a method of representing data that is not readable by humans, but can be detected and decoded by software. Barcodes are widely used in the production and distribution of many types of products, and have also been adopted for various purposes, including for identifying patients in a hospital, serialized books in a library, and products in a store. Barcode technology is used in many areas of life, including physical tracking, payment, and inventory management.

Barcodes are used to identify serial numbers, product codes, and other data that can be used to create a digital record of a physical item. They are also used in the tracking of shipments and inventory management.

This application is a scanner for QR code and barcode. You can use it to scan QR code and barcode.