The Quick Response (QR) code is a two two-dimensional barcode first invented in 1994 by the Japanese company Denso Wave. It consists of black squares on a white background, and can be read by smartphones or cameras. It is also possible to create QR code in colored version with an image on top of it. Simply click on the desired QR code type, for an example "Url", then enter your website address to generate QR code. The advanced settings give you options to change QR code color, background color, size or even to place your company logo on it. The generated QR code can be downloaded as PNG or PDF format. Creating a QR code is absolutely free and it can be used in commercial or non-commercial purposes.