Tesseract - Tesseract is an optical character recognition engine for various operating systems
bcWebCam - Scan barcodes and QR Codes with your computer web cam
ABBYY FineReader - ABBYY's latest PDF editor software, FineReader 16 you can easily convert files like PDF to Excel, PDF to Word, edit, share, collaborate & more with this PDF editor!
ZXing - Barcode Scanner for Android
Google Lens - Discover information about something by taking a photo
Barcode to PC: Wi-Fi scanner - Turn your smartphone into a real barcode scanner