BarcodeX

"Peninsula, the leading British Software Company has launched a product which enables you to make barcodes in Mac OSX! BarcodeX is packed full of terrific features, to name but a few BarcodeX allows you to produce barcodes quickly and easily. It also supports over 120 code types, so you will never be stuck to make a code. It also supports all the other types you may wish for, categories include codes for Medical, Industrial, Retail, Publishing and many others."