WordPress.org

Author: zach

Syntax hilight 30 languages, 2 dozen themes to choose from. Fast, can easily hilight 1000 lines of code (the Google Syntax Hilighter based plugins die around 75-100 lines).

2 ways to include code in your posts - use as documented on SHJS or use the [SyntaxHilite:...] syntax described in the installation/usage section to link to a raw text file.

Uses SHJS for syntax hilighting, simple hand-rolled JavaScript for line numbering.