funkjedi

This plugin adds support for SCSS stylesheets to <code>wp_enqueue_style</code>. Just enqueue your styleheet using <code>wp_enqueue_style</code> and it will automatically be compiled for you when neccessary.
Variables can be injected using the <code>sassify_compiler_variables</code> filter.
<h4>SCSSPHP</h4>
This plugin uses the latest version of <a href="https://github.com/leafo/scssphp" rel="nofollow ugc">scssphp</a>, modified to PHP 5.2.
It implements SCSS 3.2.12. It does not implement the SASS syntax, only the SCSS syntax.
<h4>Bug Submission</h4>
https://github.com/funkjedi/sassify/issues/

Sassify

Adds support for SCSS stylesheets to wp_enqueue_style.

Lars Jansen

This plugin adds SCSS functionality, compresses JS for you and creates an easy way to enqueue scripts and styles as well as localize them.
<h3>How to use</h3>
Let’s assume this structure: 
 your theme 
 ├── assets 
 │ ├── js 
 │ │ └── script.js 
 │ └── scss 
 │ └── style.scss 
 ├── functions.php 
 └── …
You can now do this in your functions.php with styles:
<pre><code><?php
add_action('wp_enqueue_scripts', static function(){
 /* Full version */
 \EasySCSSandJS\Styles::add('my_style_handle', __DIR__ .'/assets/scss/style.scss', [],[], true);

 /* Shortest version */
 \EasySCSSandJS\Styles::add('my_style_handle', __DIR__ .'/assets/scss/style.scss');

 /* Add dependencies (example: depends on handle 'bootstrap') */
 \EasySCSSandJS\Styles::add('my_style_handle', __DIR__ .'/assets/scss/style.scss', ['bootstrap']);

 /* Add variables */
 \EasySCSSandJS\Styles::add('my_style_handle', __DIR__ .'/assets/scss/style.scss', [], [
 'my_cool_color' => '#0000ff',
 ]);

 /* Enqueue it yourself */
 \EasySCSSandJS\Styles::add('my_style_handle', __DIR__ .'/assets/scss/style.scss', [], [], false);
 wp_enqueue_style('my_style_handle');
});
</code></pre>
And this with scripts:
<pre><code><?php
add_action('wp_enqueue_scripts', static function(){
 /* Full version */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js', ['jquery'], [], true, true);

 /* Shortest version (jquery is by default a dependency) */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js');

 /* No dependencies (also no jquery) */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js', []);

 /* Add dependencies (besides jquery) */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js', ['jquery', 'other_script']);

 /* Add variables */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js', ['jquery'], [
 'my_variable' => 'testing this awesome plugin',
 ]);

 /* Enqueue it yourself */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js', ['jquery'], [], false);
 wp_enqueue_script('my_script_handle');

 /* Add the script to the header instead of the footer */
 \EasySCSSandJS\Scripts::add('my_script_handle', __DIR__ .'/assets/js/script.js', ['jquery'], [], true, false);
});
</code></pre>
Use variables in SCSS:
<pre><code>// This is recommended. It will throw a fatal error if your PHP doesn't set the variable for some reason.
// If PHP does set it, it will replace $my_cool_color with the defined color in PHP.
$my_cool_color: #ffffff !default;

body{
 background-color: $my_cool_color; // This will be blue (#0000ff)
}
</code></pre>
Use variables in JS:
<pre><code>alert(my_script_handle_vars.my_variable);
</code></pre>
Compiled files will be saved in wp-content/uploads/compiled-scss-and-js. When that folder is cleared, everything will be regenerated.
<h3>Filters</h3>
There are filters for adding generic variables to all (or a selection) of scripts and styles or for adding extra content to files: 
– <code>easy_scss_extra_variables</code> 
– <code>easy_scss_add_code_before_content</code> 
– <code>easy_scss_add_code_after_content</code> 
– <code>easy_scss_create_source_map</code> 
– <code>easy_scss_storage_folder_name</code> 
– <code>easy_scss_storage_folder</code> 
– <code>easy_scss_storage_folder_url</code> 
– <code>easy_scss_after_compilation</code> 
– <code>easy_js_extra_variables</code> 
– <code>easy_js_storage_folder_name</code> 
– <code>easy_js_storage_folder</code> 
– <code>easy_js_storage_folder_url</code> 
– <code>easy_js_after_compilation</code>

Easy SCSS and JS

Works flawlessly

This plugin adds SCSS functionality, compresses JS for you and creates an easy way to enqueue scripts and styles as well as localize them.

Sassify vs Easy SCSS and JS