A Syntax Highlighter built in PHP and jQuery that supports customizable languages and themes.
It can highlight from a URL, or WordPress post text. Crayon makes it easy to manage Language files and define
custom language elements with regular expressions.
It also supports some neat features like:
Related to WordPress Plugin Crayon Syntax Highlighter
WP-Syntax provides clean syntax highlighting using
GeSHi — supporting a wide range of popular
languages. It supports highlighting with or without line numbers and maintains formatting while copying snippets of code
from the browser.