QR Code Generator
100% client-side QR generation. Custom colors, sizes, and formats rendered instantly.
Parameters
Higher levels allow the QR code to be scanned even when partially damaged, dirty, or containing custom logos, but make the code more dense.
Color Palette
Customizing and Generating High-Quality QR Codes
A QR (Quick Response) code is a matrix barcode designed in 1994 by the Japanese automotive company Denso Wave. QR codes store information using black and white squares in a grid, which can be easily scanned by cameras and smartphones. Because our generator operates entirely client-side, your scanned text/links are never sent to external servers, providing full confidentiality for private URLs or secret tokens.
Best Practices for Custom Colors and Contrast
For reliable scan rates across all camera qualities, maintain a high contrast ratio between the foreground (blocks) and background colors. Standard QR scanners expect dark blocks on a light background. However, modern smartphone cameras are highly advanced and can usually read inverted QR codes (light blocks on a dark background, like our default Obsidian Cyan Flux). If you intend to print your QR code, we highly recommend choosing a pure white background and a dark slate/black foreground.