Barcode Online Reference
Barcode Symbologies
Linear Bar Codes
Codabar
Code 128
UCC Code
UCC/EAN-128
Code 39
Code 39 mod 43
Extended Code 39
HIBC
Code 93
EAN
EAN-13
EAN-8
Interleaved 2 of 5
Interleaved 2 of 5 mod 10
MSI
MSI Plessy
UPC
UPC-A
UPC-E
Zip+4 POSTNET
2D Barcode Symbologies
Aztec
Aztec Mesa
Code 16K
Code 49
Data Matrix
EAN/UCC and RSS-14 Composites
PDF417
MaxiCode
MicroPDF417

UPC




UPC-A
                                    
UPC-E

The UPC (Universal Product Code) has been used by the Canadian and United States retail industry since 1973. UPC is a fixed-length, continuous symbology that only encodes numeric data. There are two versions of the UPC: version A, which encodes twelve digits, and version E, which encodes six digits.