Free QR colours, logos, and patterns

URLZ can build a QR code for any URL and let you change how it looks before you download it. The background and the blocks can each take a colour, as long as the contrast stays strong enough to scan. The center can hold your logo, up to four letters or numbers, or stay empty if you want an ordinary code. The whole mark can be a square or a circle. The three finder corners can be square, dot, rounded, extra-rounded, or classy. The modules can be blocks, rounded, or dots. Text above and below the code, with a size you can tune, is in beta. Downloads are PNG, JPG, or SVG, up to 7000 by 7000 pixels.