QRCode Monkey
Códigos de barras
QR Code Generator | Create Your Free QR Codes
Check Digit Calculator | GS1 Switzerland
KAYWA QR CODE - Free QR Code Generator, Coupon, Contact & Design QR Codes & Tracking
QR Code Generator – create QR codes for free (Logo, T-Shirt, vCard, EPS)
QR Code Generator - Create Your Own QR Codes - QuickMark
QR Code Generator from the ZXing Project