QR Code Not Scanning? 9 Fixes That Actually Work

Updated June 2026 · ~4 min read

A QR code that refuses to scan is almost always a fixable problem with the code itself, not the phone. Work through these in order.

1. Too little contrast

Cameras need dark modules on a light background. Light-grey-on-white or busy gradients confuse the scanner. Keep it dark on light.

2. Inverted colours

A light code on a dark background often fails. If you want a dark look, test thoroughly — many readers expect the standard polarity.

3. Printed too small

Below about 2 cm, many cameras give up. Enlarge it, and use an SVG so it stays sharp.

4. No quiet zone

QR codes need a clear margin around them. Text or graphics touching the edge break detection — leave breathing room.

5. Stretched or skewed

Resizing without keeping it square distorts the pattern. Always scale proportionally.

6. A logo that is too big

A centre logo covering too much data defeats error correction. Keep logos small and use level H. See adding a logo safely.

7. Blurry or low-resolution export

A stretched low-res PNG turns crisp squares into mush. Re-export at higher resolution or as SVG.

8. Glare or curved surface

Shiny laminate and bottles reflect light or bend the code. Use matte stock and flatter surfaces.

9. A dead destination

If it scans but the page fails, the link is broken — not the code. Confirm the URL works in a browser. Static codes from our URL to QR Code tool encode the link directly, so there is no redirect to expire.