Alessandro Carbone

How many times have you wished to minify in a clean way all the stylesheets and scripts of a WordPress website?
AssetsMinify takes every CSS and JS asset included using <code>wp_enqueue_style()</code> and <code>wp_enqueue_script()</code>, merges and minifies them.
You can also use AssetsMinify to create your WP theme using Compass / Sass / Less without configuring any <code>config.rb</code> or that kind of stuff.
AssetsMinify is based on Assetic library.
<a href="https://github.com/acarbone/AssetsMinify" rel="nofollow ugc">Fork me on Github</a>.

AssetsMinify

Use Compass, Sass, Less, Stylus, CoffeeScript (and more ...) to develop your themes and minify your stylesheets and JavaScript.

Justin Kopepasah

Using <a href="http://lesscss.org" rel="nofollow ugc">Less</a> when developing a theme can both enhance the code and speed development. However, setting up Less in a every theme (not to mention updating Less for each theme) can make any saved time saved.
This plugin solves that issue by setting up Less for the theme.
Usage
<ol>
<li>Add <code>style.less</code> at the root of the theme.</li>
<li>
Add the following to the <code>after_setup_theme</code> hook.
<pre><code>add_theme_support( 'less', array(
 'enable' => true
 ) );
</code></pre>
</li>
</ol>
For more information on advanced usage, other options or to join development, visit the <a href="https://github.com/kopepasah/less-theme-support" rel="nofollow ugc">Github repo</a>.

Less Theme Support

Enables support feature for using Less in a theme.

AssetsMinify vs Less Theme Support