DyadyaLesha

Подсветка редактора кода WordPress с помощью CodeMirror.
CodeMirror это Javascript библиотека, которая превращает textarea в подобие IDE, с подсветкой синтаксиса, табуляцией, автоотступами, автодополнением и другими полезными фишками.
Поддерживает подсветку основных языков программирования — C, C#, CSS, Javascript, HTML, PHP, SQL.
Библиотека знаменита тем, что используется в Google Code Playground.

DL CodeMirror

Подсветка редактора кода Wordpress с помощью CodeMirror

kartikaykanojia

A code syntax highlighter an easy to use source code embedding in wordpress with different(55) themes with 172 languages. 
It uses dynamic script loading to load only essential javascript to render code syntax highliting. 
It uses most powerfull open source library CodeMirror as engine.
Features
<ul>
<li>Dynamic script loading to minimize load time and http call</li>
<li>172 language support</li>
<li>172 shortcodes</li>
<li>Shortcode picker in editor</li>
<li>Lightweight language selector</li>
<li>Multiple Theme support</li>
<li>55 Themes</li>
<li>Theme manager</li>
<li>Theme uploader (Upload your own theme)</li>
<li>Compatible with all WordPress themes</li>
<li>Fast and secure</li>
<li>Cross browser compatible</li>
<li>Line numbering</li>
<li>A powerful, composable language system</li>
<li>Bracket and tag matching</li>
<li>Line selector</li>
<li>Able to resize to fit content</li>
</ul>
Minimum system requirements:
<ul>
<li><a href="https://php.net" rel="nofollow ugc">PHP</a> version 5.2 or higher.</li>
<li><a href="https://www.mysql.com" rel="nofollow ugc">MySQL</a> version 5.0 or higher.</li>
</ul>
Recommended system requirements:
<ul>
<li><a href="https://php.net" rel="nofollow ugc">PHP</a> version 7.0 or higher.</li>
<li><a href="https://www.mysql.com" rel="nofollow ugc">MySQL</a> version 5.6 or higher.</li>
</ul>
Credits
<ul>
<li>The banner of plugin is a copyrighted image created by the <a href="http://www.briskjab.com" rel="nofollow ugc">Briskjab</a>. (C) All rights reserved.</li>
<li><a href="https://codemirror.net/" rel="nofollow ugc">CodeMirror</a> is an open-source project shared under the <a href="https://codemirror.net/LICENSE" rel="nofollow ugc">MIT license</a>.</li>
</ul>

Code Syntax Highlighter

A simple dynamic loading syntax highlighter.Supports 172 languages, 172 shortcodes and 55 themes.

DL CodeMirror vs Code Syntax Highlighter