Confiance • Simplicité • Vitesse

QR Code Not Working: What to Do?

Improve QR code readability with these simple troubleshooting tips.

Discover the information below.

🔒 Privacy

Your data (images, generation info) stays only on this device.

📱 Compatibility

Works on iPhone, Android, tablet, and desktop, no installation needed.

⚡ Performance

Fast scanning and instant generation, optimized for speed.

📚 Local History

Find the QR codes you've generated in 'My QRs'.

Troubleshooting Checklist

  1. Check the brightness: the code must be well-lit.
  2. Clean your camera lens and avoid glare.
  3. Move closer without causing blur, then stabilize the image.

If the QR code is printed or displayed

  • Increase the code size (minimum 2 cm x 2 cm).
  • Ensure maximum contrast (black on white background).
  • Avoid creases, tears, or damaged areas on the code.

Useful Resources

Try the live scan on this page or follow the iPhone/Android guide.

Why choose ScannerUnQCode.com?

Our tool emphasizes simplicity and security. Scanning and creation happen locally on this device, with no account, no signup, and no data transfer to a server.