What is a QR Code?
A QR (Quick Response) code is a two-dimensional barcode that can store various types of information. When scanned with a smartphone camera or QR reader, it quickly directs users to websites, displays text, initiates phone calls, connects to WiFi networks, and more.
Common Use Cases
- Share website URLs without typing
- Digital business cards (vCard)
- Restaurant menus and ordering systems
- Product packaging and marketing materials
- WiFi network sharing
- Event tickets and check-ins
- Payment information and cryptocurrency wallets
Error Correction Levels
- Low (7%): Smallest QR code, best for clean environments
- Medium (15%): Balanced size and reliability (recommended)
- Quartile (25%): Better damage resistance
- High (30%): Maximum damage resistance, larger code
💡 Tip: Higher error correction allows the QR code to be partially damaged or obscured while still being scannable. Use higher levels if you plan to add logos or if the code might get damaged.
