Codablock F

Codablock F is a bar code format which consists of Code 128 bar codes stacked into a rectangular area with multiple rows. It is capable of encoding the 128-character ASCII repertoire, or the 256-character ISO 8859-1 (Latin 1) range.

Developer libraries

 * Google Code: Codablock F
 * ZBar bar code reader library: cross-platform
 * zxing (Zebra Crossing) (barcode library for Java, ported to some other systems)

Utilities

 * Free online bar code generator