QR Code Generator
256 px
⚠️ Low contrast detected. This color combination may not scan reliably on all phones. For guaranteed scanning, use black on white.
22%
QR code preview will appear here
Tips for a great QR code
Keep your text short. The shorter your link or text, the simpler the QR pattern — and the faster any phone camera can scan it.
The shorter the text → the simpler the QR → the easier it scans
Always use high contrast — ideally black on white. Low contrast colors (e.g. light grey on white, red on dark red) cause scan failures on cheap phones and in bright sunlight. If you change colors, always test scan before sharing or printing.
If you add a logo, keep it small. A logo covering more than 30% of the QR code may cause scan failures. Use the slider to find the right balance.
Don't print it too small. For flyers and posters, make the QR code at least 2 cm × 2 cm (about the size of a thumbnail). Smaller than that and phones may struggle.
Download as PNG for digital use, PDF for printing. PNG is best for websites and screens. PDF places the QR code perfectly centered on an A4 sheet, ready to print.