Minted: Highlighted source code in LATEX

Minted is a LaTeX package that facilitates expressive syntax highlighting using the powerful Pygments library. The package provides options to customize the highlighted source code output.
The example below shows how C code is highlighted,  and the output is shown at right:

\documentclass{article} \usepackage{minted} \begin{document} \begin{minted}{c} int main() { printf("hello, world"); return 0; } \end{minted} \end{document}

Pygments also provides a command line interface pygmentize, among the possible output formats there are HTML, RTF, LaTeX and ANSI sequences.
For command line highlighting a solid alternative to Pygments is GNU Source-highlight.



Source: http://mirrors.ircam.fr/pub/CTAN/macros/latex/contrib/minted/minted.pdf

Source: http://petereisentraut.blogspot.com/2009/07/adding-color-to-console-pygments-vs.html

A couple of on-line highlighters: http://www.hilite.me/, http://quickhighlighter.com/