Yevhen

<h4>Features</h4>
<ul>
<li>Grouping several scripts into single file (to minimize http requests count)</li>
<li>Combine several CSS files into single files (with grouping by “media”)</li>
<li>Pack scripts using Dean Edwards’s JavaScript Packer or Minify (by Steve Clay)</li>
<li>Minify CSS files (remove comments, tabs, spaces, newlines)</li>
<li>Support conditional JS and CSS (html5.js, IE CSS, <!–[if lt IE 9]>)</li>
<li>Support JavaScript L10n / I18n (wp_localize_script)</li>
<li>Put JavaScript at bottom</li>
<li>Ability to include JavaScript and CSS files</li>
<li>Network / WPMU support</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>Cache directory <code>/wp-content/cache/</code> should be writable</li>
<li>This Plugin processing only those scripts that are included properly (using “wp_enqueue_script” or “wp_enqueue_style” function)</li>
<li>Read <a href="https://developer.wordpress.org/themes/basics/including-css-javascript/" rel="nofollow ugc">Including CSS & JavaScript</a></li>
<li>If any script fails and web-browser console shows errors you can add this JS to exclude list</li>
</ul>
<p>For more info visit <a title="This WordPress plugin home page" href="http://4coder.info/en/code/wordpress-plugins/js-css-script-optimizer/" rel="nofollow ugc">http://4coder.info/en/code/wordpress-plugins/js-css-script-optimizer/</a>.</p>


JS & CSS Script Optimizer

Make your Website faster by packing and grouping JavaScript and CSS files. Also it provides an opportunity to add CSS & JS via admin panel.

Jenst

<h4>Benefits</h4>
<p>Add additional code to your header WITHOUT editing your theme:</p>
<ul>
<li>Stylesheets (CSS)</li>
<li>Javascript (JS)</li>
<li>Google Analytics</li>
<li>Metadata</li>
<li>Anything else</li>
</ul>
<h4>Example usage</h4>
<ul>
<li>Change your downloaded theme visually without changing it, by adding an extra stylesheet. If you update your theme, your changes will still be intact.</li>
<li>Add Google Analytics without changing your theme. If you update or change your theme, Google Analytics will still be there.</li>
</ul>


Add to Header

Add additional code to your header WITHOUT editing your theme, such as CSS and Javascript.

JS & CSS Script Optimizer vs Add to Header