Klaylton Fernando

This plugin adds 3 fields on every page and blog post where you can type your code in a readable interface.
In addition to being very light and functional, the WP Custom Code plugin also allows you to work with external libraries. Basque paste the address 
of the javascript library of your choice in the designated field and you will be able to enjoy this indispensable resource.

WP Custom Code

Add CSS and Javascript to your pages simply and quickly. WP Custom Code supports CodeMirror.

Fred Wu

SyntaxHighlighter Plus is a WordPress plugin for code syntax highlighting. It is an enhanced version of the original SyntaxHighlighter by Matt, Viper007Bond and mdawaffe. Please give them a big applause for making such a great plugin!
SyntaxHighlighter allows you to easily post syntax highlighted code all without loosing it’s formatting or making an manual changes.
It supports the following languages (the alias for use in the post is listed next to the name):
<ul>
<li>Bash — <code>bash</code>, <code>sh</code></li>
<li>C++ — <code>cpp</code>, <code>c</code>, <code>c++</code></li>
<li>C# — <code>c#</code>, <code>c-sharp</code>, <code>csharp</code></li>
<li>CSS — <code>css</code></li>
<li>Delphi — <code>delphi</code>, <code>pascal</code></li>
<li>Diff — <code>diff</code></li>
<li>Groovy — <code>groovy</code></li>
<li>Java — <code>java</code></li>
<li>JavaScript — <code>js</code>, <code>jscript</code>, <code>javascript</code></li>
<li>Perl — <code>perl</code>, <code>pl</code></li>
<li>PHP — <code>php</code></li>
<li>Plain text — <code>plain</code>, <code>text</code></li>
<li>Python — <code>py</code>, <code>python</code></li>
<li>Ruby — <code>rb</code>, <code>ruby</code>, <code>rails</code>, <code>ror</code></li>
<li>Scala — <code>scala</code></li>
<li>SQL — <code>sql</code></li>
<li>VB — <code>vb</code>, <code>vb.net</code></li>
<li>XML/HTML — <code>xml</code>, <code>html</code>, <code>xhtml</code>, <code>xslt</code></li>
</ul>
This plugin uses the <a href="http://code.google.com/p/syntaxhighlighter/" rel="nofollow ugc">SyntaxHighlighter JavaScript package by Alex Gorbatchev</a>.
<h3>Other BBCode Methods</h3>
Find <code>[sourcecode language='css']code here[/sourcecode]</code> too long to type? Here’s some alternative examples:
<ul>
<li><code>[source language='css']code here[/source]</code></li>
<li><code>[code language='css']code here[/code]</code></li>
<li><code>[sourcecode lang='css']code here[/sourcecode]</code></li>
<li><code>[source lang='css']code here[/source]</code></li>
<li><code>[code lang='css']code here[/code]</code></li>
<li><code>[sourcecode='css']code here[/sourcecode]</code></li>
<li><code>[source='css']code here[/source]</code></li>
<li><code>[code='css']code here[/code]</code></li>
<li><code>[lang='css']code here[/lang]</code></li>
<li><code>[css]code here[/css]</code> (or any of the supported language)</li>
</ul>
Note: Quotation marks around the language can be omitted for even shorter and neater syntax. 🙂

SyntaxHighlighter Plus

Easily post source code such as PHP or HTML and display it in a styled box.

WP Custom Code vs SyntaxHighlighter Plus