Lots of "free" QR generators quietly create dynamic codes that point at their own servers, then charge you once the codes are printed. QRCode666 only makes static codes: your link, Wi-Fi details or contact card are encoded directly, so they work forever, with or without us. 9 types, custom styles and logos, PNG up to 4096px and true SVG. Generated in your browser: no account, no cookies. English and 中文. Open source (MIT). Created out of spite. Kept free out of principle.