Image Tools
QR Code Generator
Generate customizable QR codes for URLs, WiFi networks, contact information, and more. Perfect for marketing and sharing.
QR Code Type
QR Code Content
Customization
QR Code Tips
Best Practices:
- • Keep text short for better scanning
- • Use high contrast colors
- • Test on different devices
- • Include error correction for damaged codes
- • Ensure adequate size for scanning distance
Size Guidelines:
- • Business cards: 0.4-0.6 inches
- • Flyers/posters: 1-2 inches
- • Billboards: 3+ inches
- • Digital screens: 200-400px
- • Mobile apps: 150-250px
About QR Codes
QR (Quick Response) codes are two-dimensional barcodes that can store various types of information, from simple text to complex data like WiFi credentials, contact information, or website URLs. They were invented in 1994 by Denso Wave for tracking vehicles during manufacturing and have since become ubiquitous in marketing, payments, and information sharing.
QR Code Types and Use Cases
Business & Marketing
- • Website links and landing pages
- • Social media profiles
- • Product information and reviews
- • Digital business cards (vCard)
- • Event tickets and check-ins
Personal & Convenience
- • WiFi network sharing
- • Contact information sharing
- • Location coordinates
- • Email composition shortcuts
- • SMS and phone call triggers
Error Correction Levels
QR codes include built-in error correction, allowing them to be readable even when partially damaged or obscured. Choose the appropriate level based on your use case:
- Low (L): ~7% recovery - Good for clean environments
- Medium (M): ~15% recovery - Standard for most uses
- Quartile (Q): ~25% recovery - Better for outdoor use
- High (H): ~30% recovery - Best for harsh conditions
Design Best Practices
Important Design Guidelines
- • Maintain high contrast between foreground and background
- • Ensure adequate quiet zone (white space) around the code
- • Test readability across different devices and lighting
- • Size appropriately for scanning distance
- • Avoid placing codes on curved or reflective surfaces
Technical Specifications
QR codes can store different amounts of data depending on the content type and error correction level:
- Numeric: Up to 7,089 characters
- Alphanumeric: Up to 4,296 characters
- Binary: Up to 2,953 bytes
- Kanji: Up to 1,817 characters