Code39

Code 39 is a linear barcode symbology that consists of two wide bars and one wide space in each character, resulting in 40 possible characters. Setting aside one of these characters as a start and stop pattern left 39.

(Also known as Alpha39, Code 3 of 9, Code 3/9, Type 39, USS Code 39, or USD-3)

Info: https://en.wikipedia.org/wiki/Code_39

Code39Mod43 is the modified version of Code39  adding four punctuation characters, using no wide bars and three wide spaces, and expanding the character set to 43 characters. 

(Also known as Alpha39, Code 3 of 9, Code 3/9, Type 39, USS Code 39, or USD-3)

https://en.wikipedia.org/wiki/Code_39#Code_39_mod_43

Code 93 is a  linear barcode offering a higher density than Code 39 with enhanced data security. It is an alphanumeric, variable length symbology.

Info: https://en.wikipedia.org/wiki/Code_93

Code128

Code 128 is a high-density linear barcode symbology defined in ISO/IEC 15417:2007 and used for alphanumeric or numeric-only barcodes.

Info: https://en.wikipedia.org/wiki/Code_128

UPCE

The Universal Product Code (UPC or UPC-A) is a barcode symbology that is widely used worldwide for tracking trade items in stores, wherein 12 digits that are uniquely assigned to each trade item.

UPC-E, a zero-suppressed version of UPC, was developed for use on smaller packages. With UPC-E codes, the number system digit, all trailing zeros in the manufacturer code, and all leading zeros in the product code, are omitted, leaving a 6-digit code.

https://en.wikipedia.org/wiki/Universal_Product_Code

EAN13 

EAN-13 is the most commonly used European Article Number standard. The thirteen-digit barcode is used in global trade to identify a specific retail product type, in a specific packaging configuration, from a specific manufacturer. 

https://en.wikipedia.org/wiki/International_Article_Number

EAN8

EAN-8, another European Article Number standard, was derived from the longer EAN-13 code for use on smaller packages. 

Info: edia.org/wiki/EAN-8

Interleaved 2 of 5 (ITF) is a continuous two-width barcode symbology used to encode digits. Digits are encoded in pairs where the first digit is represented by five black lines, and the second digit is represented by the five white spaces interleaving those black lines. Because digits are encoded in pairs, only an even number of digits can be encoded.

https://en.wikipedia.org/wiki/Interleaved_2_of_5

ITF14

ITF-14 is the GS1 implementation of an Interleaved 2 of 5 (ITF) bar code which uses 14 digits to represent a Global Trade Item Number. With this format, the barcode is enclosed within a thick black border called the Bearer Bar.

https://en.wikipedia.org/wiki/ITF-14

PDF417

PDF417 is a stacked linear barcode format that is widely used in commercial and government applications. A PDF417 barcode, or symbol, consists of 3 to 90 rows, each the equivalent of a small linear barcode.

https://en.wikipedia.org/wiki/PDF417

QR

A QR code, or quick response code, is a two-dimensional barcode consisting of black squares arranged in a square grid on a white background. A QR code is a machine-readable optical label that offers fast readability and greater storage capacity than linear barcodes.

Info: https://en.wikipedia.org/wiki/QR_code

Data Matrix

Data Matrix is a two-dimensional barcode consisting of black and white "cells" or dots arranged in either a square or rectangular pattern. Because Data Matrix can encode fifty characters in a symbol that is readable at 2 or 3 mm2 (0.003 or 0.005 sq in) and be read with only a 20% contrast ratio, the format is often used to tag small items.

https://en.wikipedia.org/wiki/Data_Matrix

AZTEC

Aztec, a two-dimensional barcode, consists of a bulls-eye pattern at its center with concentric square rings surrounding it. Aztec uses less space than other matrix barcodes.

Info: https://en.wikipedia.org/wiki/Aztec_Code