A QR code generator is a tool or software that creates QR (Quick Response) codes. QR codes are two-dimensional barcodes that can store various types of information, such as text, URLs, contact information, or other data. QR code generators typically allow users to input the desired information and then generate a unique QR code that represents that information visually. Users can then share or print the QR code for others to scan with their smartphones or QR code scanners to access the stored information quickly and easily.