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Code 128 barcodes are very popular bar code symbols used throughout the ID, inventory, shipping and distribution chain. GS1-128 barcodes are a subset of Code 128 based on detailed industry specifications.

UPC (Universal Product Code) bar codes are used in the U.S. and Canada on retail items. ISBN-13 (International Standard Book Number) barcodes are used on books. EAN (European Article Number) and JAN (Japanese Article Number) barcodes are used on retail items in Europe and Japan respectively.

Code 39 (sometimes called '3 of 9') barcodes are a common symbology used for ID, inventory, and tracking purposes.

Interleaved 2 of 5 barcodes are used on corrugated boxes, in the shipping industry, and in laboratories.

POSTNET bar codes are used to encode ZIP codes on U.S. mail.

Codabar is a numeric symbology used by FedEx, libraries, and blood banks.

MSI-Plessey barcodes are used on shelf labels in warehouses and retail stores, and in libraries.

2 of 5 barcodes are an uncommon barcode symbology used on some airline tickets and in photofinishing labs. 2 of 5 (non-interleaved) is frequently confused with its cousin, Interleaved 2 of 5, a popular and very common barcode symbology.

Code 93 is a rarely used, compact barcode symbology used on electronic components. Due to the similarity of their names, Code 93 and Code 39 are easily mistaken for each other.

OCR-A/OCR-B barcodes are used on files, documents, reports and in some physical inventory tracking.

Make QR barcodes online for free at our QR site, QRdvark.com.

Download the free Azalea Code 39 barcode font, Code39Azalea, for print or web.