1. Enter text such as URL, select output format, set module size and margin. The module size and margin can be up to 30. Set module size to 0 to make the image scalable when the output format is SVG.
2. The output QR code will be listed behind. You can scan it with your smart phone or right-click it and select "Save image as..." to save the QR code image to your computer.
QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used.