Async JavaScript
Async Javascript lets you add 'async' or 'defer' attribute to scripts to exclude to help increase the performance of your WordPres …
4.7(102 reviews)
·80K+ active installs·Updated 2 years agoAs of April 2026, Async JavaScript is a WordPress async plugin with 80K+ active installations and a 4.7/5 rating from 102 reviews. It has been downloaded 2.0M+ times in total. Requires WordPress 4.6+ and PHP false+. Available on WordPress.org since 2014. Last updated 2 years ago — may have compatibility concerns. Downloads are up 6% this week. Top alternative: Speed Up – Optimize CSS Delivery.
4.7/5102 reviews
80K+active installs
2.0M+total downloads
12 yearssince 2014
Overview
Eliminate Render-blocking Javascript in above-the-fold content with Async Javascript.
Render-blocking Javascript prevents above-the-fold content on your page from being rendered until the javascript has finished loading. This can impact on your page speed and ultimately your ranking within search engines. It can also impact your user’s experience.
Async JavaScript gives you full control of which scripts to add an ‘async’ or ‘defer’ attribute to or to exclude to help increase the performance of your WordPress website.
Ratings & Reviews
4.7102 reviews
5 ★
90
4 ★
4
3 ★
1
2 ★
2
1 ★
5
Recent Reviews
Great plugin
by lockbench·2 years ago·1 reply
A truly great plugin, does exactly what is describing. No extra stuff, great implementation and great support!
Thank you!
Great plugin and support
by gaiusjaugustus·2 years ago·1 reply
I’ve been using this plugin for several months after it was suggested to me by a colleague. The setup was simple, but also gives advanced options that I needed, such as excluding certain scripts. I had an issue recently, and the developer provided fast and helpful support! I definitely recommend this plugin.
Performance promise delivered
by W★·3 years ago·1 reply
Exemplary support, and the plugin does exactly what it promises. This is unfortunately not a given in a time when many other plugins try to cover more and more tasks and end up in dangerous waters. Async JavaScript proves: Less is more.
Essential and works great!
by maportugal·4 years ago·1 reply
This is the typical installation plugin you can’t miss in your project. Fulfill what you promise to do.
Great plugin & support
by tomraab90·4 years ago·1 reply
The plugin is easy to use. E.g with some videos on youtube. It improved our Google Page Speed significantly. And when I had a support question I got feedback within hours. Great Job. Keep up the good work
Download Trends
Today: 105Yesterday: 110This week: 665Period total: 43K
Compatibility
| WordPress | 4.6+ requiredTested up to 6.2.9 |
| PHP | false+ required |
Version Adoption
v2.21
92.5%
v2.20
5.2%
Other
2.3%
Top Alternatives to Async JavaScript
Frequently Asked Questions
Changelog
2.21.08.31
- workaround for issues with some inline JS getting asynced (hat tip to WP Bullet’s Mike)
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.