10 Best Async JavaScript Alternatives in 2026
Updated September 7, 2026 · Ranked by how closely each plugin matches, from WordPress.org data · How this works
Async JavaScript has 70,000+ active installs on WordPress.org. These 10 plugins share its category or its tags on WordPress.org, are actively maintained, and each has at least 100 active installs. They are ordered by how closely they match, not by our opinion.
The 10 closest alternatives to Async JavaScript
- 1
Insights from Google PageSpeed
Closest match4.8 (28) 10,000+ active installsUse Insights from Google PageSpeed to increase your sites performance, your search engine ranking, and your visitors browsing experience.
Shares the pagespeed, performance tags on WordPress.org. 10,000+ installs against 70,000+, no update since July 7, 2024.
- 2
Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer
4.7 (339) 50,000+ active installsOptimize and tweak WordPress by disable unused features. Improve performance, SEO and security using Clearfy — super easy, fast and zero code.
Shares the pagespeed, performance tags on WordPress.org. A similar number of installs, last updated July 23, 2026.
- 3
Super Page Cache – Cloudflare Cache, Page Speed & Core Web Vitals
4.8 (508) 70,000+ active installsBoost PageSpeed, SEO, and Core Web Vitals with full page caching, JS/CSS optimization, media optimization, and Cloudflare CDN.
Shares the pagespeed, performance tags on WordPress.org. A similar number of installs, rated 4.8 against 4.7, last updated 7 days ago.
- 4
WP Meteor Website Speed Optimization Addon
4.7 (77) 20,000+ active installs2x-5x improvement in your Page Speed score. A completely new way of optimizing your page speed.
Shares the pagespeed, performance tags on WordPress.org. About a third of the installs, last updated June 10, 2026.
- 5
4.8 (476) 50,000+ active installsTurns on site high speed to be attractive for people and search engines.
Shares the pagespeed, performance tags on WordPress.org. A similar number of installs, rated 4.8 against 4.7, last updated 4 days ago.
- 6
10Web Booster – Website speed optimization, Cache & Page Speed optimizer
4.6 (405) 70,000+ active installsSpeed up your site with 10Web Booster. Pass Core Web Vitals by optimizing HTML / CSS / JavaScript, Image Optimization, Lazy Loading, Cache, Google Fon …
Shares the pagespeed, performance tags on WordPress.org. A similar number of installs, rated 4.6 against 4.7, last updated 18 days ago.
- 7
4.4 (47) 10,000+ active installsAllows your site to use common javascript libraries from Google's AJAX Libraries CDN, rather than from WordPress's own copies.
Shares the javascript, performance tags on WordPress.org. 10,000+ installs against 70,000+, no update since November 28, 2017.
- 8
4.7 (37) 7,000+ active installsMove your scripts to the footer to help speed up perceived page load times and improve user experience.
Shares the javascript, performance tags on WordPress.org. 7,000+ installs against 70,000+, last updated November 17, 2025.
- 9
4.2 (51) 700+ active installsConverts render-blocking CSS and JS files into NON-render-blocking, improving performance of web page.
Shares the async, javascript tags on WordPress.org. 700+ installs against 70,000+, rated 4.2 against 4.7, no update since November 28, 2017.
- 10
SpeedyCache – Cache, Optimization, Performance
4.4 (30) 600,000+ active installsSpeedyCache is a WordPress cache plugin that helps you improve performance of your WordPress site by caching, minifying, and compressing your website.
Shares the pagespeed tag on WordPress.org. About 8.6 times the installs, last updated June 24, 2026.
Switching from Async JavaScript: common questions
What is the best alternative to Async JavaScript?
Insights from Google PageSpeed is the closest match: it shares the same WordPress.org tags and has 10,000+ active installs with a 4.8 out of 5 rating.
Which Async JavaScript alternative has the most users?
SpeedyCache, with 600,000+ active installs reported by WordPress.org.
Which Async JavaScript alternative is rated highest?
Super Page Cache, rated 4.8 out of 5 by 508 reviewers. Only plugins with at least 50 reviews are counted.
Are these Async JavaScript alternatives free?
Every plugin listed here is free to install from WordPress.org. Where WordPress.org marks a plugin as commercial, the developer also sells a paid version or add-ons, and that is shown on each plugin.
How are alternatives chosen?
Automatically, from WordPress.org data: plugins that share a category top 10 with Async JavaScript score highest, then plugins that appear in the same WordPress.org rankings, then plugins with the same tags, weighted so rare tags count more than common ones. Plugins by the same author and plugins rated under 4.0 are left out.
How we choose these alternatives
Nothing on this page is picked by hand. Every day we walk the whole WordPress.org directory, then score every plugin against Async JavaScript on three signals: sharing a category top 10 counts most, then appearing in the same WordPress.org rankings, then carrying the same tags, with rare tags counting for more than common ones like "wordpress". Plugins by the same author are excluded, so an author's own add-ons cannot fill the list, and so is anything rated below 4.0 or with fewer than 100 active installs. The ten highest scores are what you see, in that order. Full methodology.
The bottom line
Insights from Google PageSpeed is the closest match to Async JavaScript by the data we track, and SpeedyCache has the widest reach with 600,000+ active installs. Seraphinite Accelerator shipped the most recent release, on September 3, 2026. The list is rebuilt every day from WordPress.org, so a plugin that stops being maintained drops out on its own.
Weekly · free
What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.