bcWebCam - Scan barcodes and QR Codes with your computer web cam
QR Droid - QR Droid Zapper
ZXing - Barcode Scanner for Android
Barcode to PC: Wi-Fi scanner - Turn your smartphone into a real barcode scanner
UpCode - UpCode is a highly developed mobile access & interaction MAI technology that turns mobile...
MKH Barcode Reader - This tool can be used to scan QR codes on your PC or tablet. Note: a webcam is required.