Using QR Code or Quick Response Codes is part of the routine. We use many times in a day to when buying a product, connect devices, get reward points, and many other things. Many people use a scanner app installed in their device for scanning QR codes. But there is no need to carry extra application in your device for QR codes. Nowadays, the online QR code scanner offers much comfort than other solutions. Let's discuss the functioning of the online scanner. Before we start to understand how a scanner works with QR codes, let us throw a little light on the quick response code itself. Basically, a QR code can contain a web address, a product code, a short story, or the binary equivalent of an image that can be extracted using a QR scanner free . Also, it could have a letter inside, a list of things, or instructions. It can be a map to coordinate or a payment link. It is more than what standard barcodes are. The advantage of a QR code is that it contains small amounts o...