QR codes (Quick Response codes) are two-dimensional barcodes that can store various types of data. They're widely used for sharing URLs, contact information, WiFi credentials, and more. Simply scan with any smartphone camera to access the encoded data.

What Can You Encode?

QR codes can store URLs, plain text, email addresses, phone numbers, SMS messages, WiFi network credentials, vCards (contact cards), calendar events, geographic coordinates, and more. The amount of data depends on the error correction level.

Error Correction Levels

QR codes have built-in error correction that allows them to be read even if partially damaged or obscured. Level L recovers 7% of data, M recovers 15%, Q recovers 25%, and H recovers up to 30%. Higher levels create larger codes but are more reliable.

Best Practices

Use high contrast colors (dark foreground, light background). Avoid inverting colors as some scanners have trouble with light-on-dark codes. Keep the quiet zone (margin) to ensure scanners can detect the code. Test your QR code before printing.

Common Use Cases

Marketing materials, business cards, product packaging, restaurant menus, event tickets, WiFi sharing, mobile payments, inventory tracking, and authentication (2FA). QR codes bridge the physical and digital worlds.

Supported Data Types:

URL - Website links
Text - Plain text messages
Email - mailto: links
Phone - tel: links
SMS - sms: with message
WiFi - Network credentials
vCard - Contact info
Location - geo: coordinates

Pro Tip: When creating QR codes for print, use SVG format for unlimited scaling without quality loss. For digital use, PNG at 512px or larger works well.

Need Custom QR Code Solutions?

Our team can help integrate QR code functionality into your applications, create branded QR codes, or build custom tracking solutions. Book a free discovery call.

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