Input Type
Customization
~15% recovery
#000000
#ffffff
Preview
About QR Codes
Error Correction
QR codes use Reed-Solomon error correction. Higher levels (H) allow up to 30% of the code to be damaged while remaining scannable, but produce denser codes.
Data Types
QR codes can encode URLs, plain text, WiFi credentials, contact cards (vCard), email addresses, phone numbers, and more. Most smartphone cameras detect the type automatically.
Size & Contrast
For reliable scanning, maintain high contrast between foreground and background colors. Larger sizes and higher error correction improve scan reliability.
Privacy
All QR codes are generated entirely in your browser. No data is sent to any server, ensuring your content stays private.