QRMaster: Custom QR Code Generator von Đăng Ký 69VN

Generate QR codes from user input or current URL
Customize QR code size, color, background color, and style
Download generated QR codes
Options page for setting default values and advanced features
Auto-generate QR codes on input (optional)
Include logo in QR code (pro feature, not implemented)
Use highest error correction level (optional)
Responsive design for popup and options page