Async JS and CSS
Converts render-blocking CSS and JS files into NON-render-blocking, improving performance of web page.
4.2(51 reviews)
·800 active installs·Updated 8 years agoAs of April 2026, Async JS and CSS is a WordPress JS plugin with 800 active installations and a 4.2/5 rating from 51 reviews. It has been downloaded 114K+ times in total. Requires WordPress 2.6+ and PHP false+. Available on WordPress.org since 2013. Last updated 8 years ago — may have compatibility concerns. Top alternative: Clear Cache for Me.
4.2/551 reviews
800active installs
114K+total downloads
13 yearssince 2013
Overview
When your page is loaded by browser – all that stuff placed in HEAD tag is loaded before the page content – in blocking way. So the content is delivered to user in the last moment, after all javascript and css files are loaded.
If you are a webmaster or just want to make your web to make better your positions on search engines (yes, they preffer faster webs), just take a look on Google PageSpeed Insights – you’ll see that one of the mos important things is fastenes and one of the reason why your page is not so fast – is “Render-blocking JavaScript and CSS”.
This plugin makes ALL scripts loaded by other plugins to be loaded in asynchronous way just like Google PageSpeed Insights recommends.
All CSS files will be inserted inline into the document co…
Screenshots
Ratings & Reviews
4.251 reviews
5 ★
36
4 ★
3
3 ★
3
2 ★
2
1 ★
7
Compatibility
| WordPress | 2.6+ requiredTested up to 3.7.41 |
| PHP | false+ required |
Top Alternatives to Async JS and CSS
Frequently Asked Questions
Changelog
=1.7.13=
Removed foreach PHP warnings
=1.7.12=
Minify CSS method is more reliable with multiline commments.
Minify CSS compression bettered.
Added localization support
Added Spanish language
Added Russian language
Default CSS loading method is changed to “Inline in HEAD”
=1.7.11=
Better dependencies list build.
=1.7.10=
Changed hooks min priority to make them always non-negative.
Removed uns…
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.