Description
At a glance
Async JavaScript v2.21.08.31 is a free WordPress plugin with 70K+ active installs, 4.7/5 rating from 102 reviews, updated June 22, 2023, requires WordPress 4.6+. Download the latest GPL version below — free, with live demo included.
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.
Frequently asked questions
What is Async JavaScript?
Async JavaScript is a free WordPress plugin available under the GPL license. The current version is 2.21.08.31. It is active on over 70K websites.
Is Async JavaScript free to download?
Yes — Async JavaScript 2.21.08.31 is a free GPL download with no hidden fees, no account needed, and no feature locked behind a paywall in this package. Users rate it 4.7 out of 5 based on 102 reviews.
How do I install Async JavaScript 2.21.08.31?
Download the ZIP file from this page, then in your WordPress dashboard go to Plugins → Add New → Upload Plugin, choose the file, click Install Now, then Activate. The plugin works immediately after activation — no license key or extra setup is required for the core features.
What are the requirements for Async JavaScript?
Async JavaScript 2.21.08.31 requires WordPress 4.6 or higher. Most modern WordPress hosts already meet these versions. Running older versions may cause features to break, so update WordPress and PHP first if your site is behind.
When was Async JavaScript last updated?
Version 2.21.08.31 was last updated on June 22, 2023. This page is refreshed automatically, so the download here always matches the newest version we have verified.
Is the Async JavaScript download safe?
The file is sourced directly from the official WordPress.org repository — the same file the developer published. It is served unmodified, so what you install here is byte-identical to the official release.
Version: 2.21.08.31
Updated: October 1, 2026
Technical details
| Version | 2.21.08.31 |
|---|---|
| Last updated | June 22, 2023 |
| Active installs | 70,000+ |
| Rating | ★★★★★ 4.7/5 (102 reviews) |
| Requires WordPress | 4.6 or higher |
| Author | David Clough |
| Tags | async, javascript, pagespeed, performance, render-blocking |
Demo Async JavaScript
Download Async JavaScript
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