Asynchronous Javascript
Improve page load performance by asynchronously loading javascript using head.js
3.7(9 reviews)
·200 active installs·Updated 12 years agoAs of April 2026, Asynchronous Javascript is a WordPress JS plugin with 200 active installations and a 3.7/5 rating from 9 reviews. It has been downloaded 35K+ times in total. Requires WordPress 3.5+ and PHP false+. Available on WordPress.org since 2013. Last updated 12 years ago — may have compatibility concerns. Top alternative: Clear Cache for Me.
3.7/59 reviews
200active installs
35K+total downloads
13 yearssince 2013
Overview
This plugin is meant to be a drop-in to your wordpress installation with no additional configuration. The goals/features of this plugin are:
- Load javascript files in an asynchronous manner to improve time to DomReady/OnLoad
- Use existing wordpress APIs for backwards compatability and prevent coupling to this plugin
- Leverage dependency model wordpress provides for assets to improve loading performance
Please submit bugs or contributions to the github location and not here on wordpress’ system:
https://github.com/parisholley/wordpress-asynchronous-javascript/
SEO: async js, asynchronous js, async javascript
Incompatibility
This plugin will not work out the box with the following plugins (unless they are modified to support asynchronous loading).
- Jetpack by WordPress.com (social plug…
Ratings & Reviews
3.79 reviews
5 ★
5
4 ★
1
3 ★
0
2 ★
1
1 ★
2
Compatibility
| WordPress | 3.5+ requiredTested up to 3.5.2 |
| PHP | false+ required |
Top Alternatives to Asynchronous Javascript
Frequently Asked Questions
Changelog
1.3.5
- Ability to mark headjs as always in header (thanks DeanStr)
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.