zeaks

A simple code snippet plugin for anyone who wants to post any type of code on their site. It’s what I’ve used on Zeaks.org for a while, and highly based off of Danny Van Kooten’s Simple Quote Code Snippets plugin. It’s lightweight, uses no JavaScript, comes with 4 editable color schemes and very easy to use.
Note Does not highlight code, simply displays it in a nice way and allows posting of any code.
Use [code] Your Code [/code] in any post.

Zeaks Snippets

A simple, lightweight code snippet plugin with 4 color schemes that displays code in posts similar to how Wordpress.org does.

shazdeh

Easily add snippets and custom codes and functions for execution in WordPress environment. These codes will run safely and will not generate fatal errors, so your site won’t break if you make a typo in your code. 🙂
Perfect tool to use as your site’s <a href="http://justintadlock.com/archives/2011/02/02/creating-a-custom-functions-plugin-for-end-users" rel="nofollow ugc">functionality plugin</a>.

SafeCode

Add snippets and custom functions, without the worry to break your site.

Zeaks Snippets vs SafeCode