What makes a great QR code?
A great QR code balances aesthetics with scannability. Use high contrast between the foreground and background (dark modules on a light background is the standard). Leave adequate margin around the code — at least 4 modules of quiet zone. If adding a logo, keep it under 40% of the code's area and use high error correction (H level). Test your QR code with multiple phone cameras before printing or publishing.



