Barillo Barcode Software and Tec-IT's online barcode generator are two types of free barcode software available as of 2015. While Barillo is a standalone application, Tec-IT's solution works in browsers and does not require installation.
Barillo Barcode Software supports UPC-A, EAN-13, EAN,8, UPC-3 barcodes. It works on Windows XP and newer editions, and it supports 64-bit installations.
Tec-IT's online solution can generate EAN, UPC, GS1 DataBar, Code-128, QR Code, Data Matrix, PDF417 and ISBN codes instantly. The generated barcodes are in .gif image format and can be downloaded by clicking the red download button.
UPC-A is the most common barcode type used in the United States. It consists of a 12-digit global trade item number.