This text describes a free QR code and barcode generator that does not require any special permissions or display ads. The tool allows users to create a variety of barcodes, including QR codes, DataMatrix codes, Aztec codes, Code 39, Code 128, EAN-8, EAN-13, UPC-A, ITF, Codabar, and PDF 417. Each type of barcode has its own unique specifications and uses, making this tool versatile for a range of applications.<br/><br/>QR codes are commonly used for marketing and advertising purposes, as they can be scanned by smartphones to quickly access information or websites. DataMatrix codes are often used in manufacturing and logistics to track products and shipments. Aztec codes are similar to QR codes but can store more data. Code 39 and Code 128 are alphanumeric barcodes used in inventory management and shipping. EAN-8, EAN-13, and UPC-A are used for product identification and pricing. ITF and Codabar are used in the transportation industry, and PDF 417 is used for storing large amounts of data.<br/><br/>Overall, this free QR code and barcode generator is a useful tool for creating a variety of barcodes for different purposes. Its versatility and lack of ads or special permissions make it a convenient option for individuals and businesses alike.