Easy code highlighting for WordPress with Chili (the bundled version is 2.2): Switch to the code tab Put your code snippet inside tags Replace the above lang with the language to highlight Examples echo ""; alert( 'Hello ' + $name ); Tips Put your code inside tags if you want to preserve white space Add an “ln-” class to the element to add line numbers Read the Chili site for many config options In version 1.2, the file chili/recipes.js is the one which contains the recipes you need. So, add/remove recipes there if you need to. By default it contains html, css, javascript, and php