From content to modules
A QR encoder converts text into binary data, adds mode and error-correction information, and places the result into a square grid of light and dark modules. Finder patterns help a scanner understand orientation.
Why error correction matters
Error correction can recover some missing or obscured modules. Higher levels improve resilience but create a denser code, so they are most useful for logos or demanding print environments.
Start with the scanning context
A reliable QR code begins with where it will be seen. Printed size, viewing distance, lighting, surface finish and the scanner’s network connection matter as much as visual styling.
Design for recognition and contrast
Use a quiet margin, a calm background and strong contrast across the entire pattern. Rounded modules, brand colors and a modest logo can work well, but every finished asset should be tested on more than one phone.
Export and test the final artwork
PNG is practical for screens and everyday documents. SVG remains crisp for signs, packaging and professional print. Test the actual exported file at its final physical size before committing to a large run.
Create your QR code
Put these principles into practice with live quality feedback and watermark-free exports.
Open the related generator