QR Code Best Practices
Follow these guidelines to create effective, scannable QR codes
Design Principles
Maintain High Contrast
Use dark QR modules on a light background (or vice versa). Black on white provides the best results.
Preserve the Quiet Zone
Always maintain at least 4 modules of white space around the entire QR code.
Don't Use Similar Colors
Avoid low-contrast color combinations like light blue on dark blue.
Don't Distort the QR Code
Never stretch, compress, or skew the QR code. Always maintain a perfect square.
Size Guidelines
Minimum Sizes by Use Case
- • Business Card:0.8" x 0.8" (20mm x 20mm)
- • Print Materials:1.2" x 1.2" (30mm x 30mm)
- • Posters:2" x 2" (50mm x 50mm)
- • Billboards:8" x 8" (200mm x 200mm) or larger
Scanning Distance Formula
Minimum QR size = Scanning distance ÷ 10. For example, for scanning from 3 feet away, use at least 0.3 feet (3.6 inches) QR code.
Error Correction Levels
L (Low) - 7%
Best for: Clean, controlled environments with perfect printing
M (Medium) - 15%
Best for: Most print applications, standard use
Q (Quartile) - 25%
Best for: Industrial environments, potential damage
H (High) - 30%
Best for: Logo embedding, harsh conditions
Choose Based on Environment
Use higher error correction (Q or H) for outdoor use, physical products, or when adding logos. Use lower levels (L or M) for digital displays.
Adding Logos
Use High Error Correction
Always use error correction level Q or H when adding logos.
Keep Logos Small
Logos should cover no more than 20-30% of the total QR code area.
Test Thoroughly
Always test your QR code with multiple devices and apps after adding a logo.
Don't Cover Critical Areas
Avoid placing logos over the three position markers (corners).
Content Guidelines
Use Short URLs
Shorter URLs create simpler QR codes that are easier to scan.
Test Links Before Printing
Always verify that URLs work correctly before creating QR codes.
Use HTTPS
Always use secure HTTPS links for better security and trust.
Consider Dynamic QR Codes
Use dynamic QR codes for campaigns where you might need to update the destination URL.
Testing & Validation
Test on Multiple Devices
Test with different phones, QR reader apps, and lighting conditions.
Print Test Samples
Always print a test copy before mass production.
Check from Different Distances
Verify scannability from various distances and angles.
Use Our Quality Checker
Use our built-in quality test tool to verify your QR codes before deployment.
Common Mistakes to Avoid
Inverting Colors Without Testing
White QR codes on dark backgrounds can be problematic. Test thoroughly.
Using Too Much Information
Keep data concise. More data = more complex QR code = harder to scan.
Placing on Curved Surfaces
Avoid placing QR codes on highly curved or wrinkled surfaces.
Using Low-Resolution Images
Always generate QR codes at sufficient resolution for your intended use.
Industry-Specific Tips
Retail & Packaging
- • Use high error correction (Q or H)
- • Account for package curves and folds
- • Link to product information or videos
Events & Tickets
- • Use dynamic QR codes for tracking
- • Ensure scannable in low light
- • Include backup manual entry option
Marketing & Advertising
- • Add clear call-to-action
- • Use tracking for ROI measurement
- • Make QR codes visually appealing
Restaurants & Menus
- • Laminate or use protective coating
- • Place at table height for easy scanning
- • Update digital menus easily
Ready to Create Perfect QR Codes?
Use our tools to ensure your QR codes follow all best practices