Delicious Library 3 is free to try.
Requires OS X 10.10 Yosemite or
OS X 10.11 El Capitan.
If you like what you see, purchase a license by selecting “Buy Delicious Library” from the Delicious Library menu. Or click above!
Purchase a Bluetooth barcode scanner.Also, there's a free iOS scanner.So maybe try that first.
Only for OS X 10.8 and 10.9.
For OS X 10.5, 10.6, and 10.7.
If you seriously still run OS X Tiger (10.4).