QR Code Generator

Error correction allows QR codes to remain scannable even when partially damaged or obscured:

• Low (7%): For clean environments, minimal damage expected
• Medium (15%): Standard choice for most applications
• Quartile (25%): Good for outdoor use or minor damage
• High (30%): Essential when adding logos or for harsh conditions

Always use High error correction when adding a logo to ensure scannability.

Yes! QR codes can have logos thanks to error correction technology. When you add a logo, it essentially covers some data modules, but the error correction algorithms can reconstruct the missing information.

• Maintain high contrast between foreground and background
• Keep logos under 25% of the QR code size
• Always use High (30%) error correction with logos
• The logo literally "damages" the code, but error correction recovers it
• Test on multiple devices before finalizing

Fun fact: Error correction was originally designed for physical damage (scratches, dirt), but marketers discovered it enables logo placement!

Static QR Codes:

• Content is permanent and cannot be edited
• No tracking or analytics available
• Free and never expire
• Best for: WiFi passwords, contact cards, one-time events

Dynamic QR Codes (not available here):

• Content can be updated without reprinting
• Track scans, locations, and devices
• Usually require subscription
• Best for: Marketing campaigns, menus, product info

QR code size depends on scanning distance and data density:

• Business cards: Minimum 2×2 cm (0.8×0.8 inches)
• Flyers/Brochures: 3×3 cm (1.2×1.2 inches)
• Posters: 10×10 cm (4×4 inches) or larger
• Billboards: Scale proportionally to viewing distance

Rule of thumb: 10:1 ratio - for scanning from 10 feet away, make it at least 1 foot wide.

QR code capacity varies by error correction level:

• Low: Up to 2,953 characters
• Medium: Up to 2,331 characters
• Quartile: Up to 1,663 characters
• High: Up to 1,273 characters

Tips: Use URL shorteners for long links, minimize vCard fields, and remember that more data means denser patterns that are harder to scan.

QR codes are widely used for:

• Restaurants: Digital menus and ordering
• Events: Ticketing and check-ins
• Retail: Product information and reviews
• Real Estate: Property details and virtual tours
• Education: Resource sharing and attendance
• Healthcare: Patient forms and appointment booking

Yes, but this generator creates static QR codes which are NOT recommended for payments. For secure payment QR codes:

• Use dynamic QR codes from payment providers
• Never encode sensitive financial data directly
• Always verify the merchant before scanning
• Use payment apps with built-in QR generators

Static QR codes should only contain public information like URLs or contact details.

Follow these steps for reliable QR codes:

• Test with multiple devices (iOS, Android, various apps)
• Check scanning from different angles and distances
• Ensure good lighting conditions where deployed
• Avoid placing on curved or reflective surfaces
• Include a short URL or text fallback when possible
• Monitor scan rates if using for marketing