Best async CSS plugins for WordPress
The most popular async CSS plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Page Speed Optimizer leads with 6K+ active installs, ahead of CSS JS Manager, Async JavaScript, Defer Render Blocking CSS (1K+) and Speed Up (500+). All 3 plugins tagged “async css” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
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Top 3 async CSS plugins
- 1.Page Speed Optimizer
The most installed async CSS plugin, with 6K+ active installs. Rated 4.7 from 64 reviews, updated 1 week ago.
- 2.CSS JS Manager, Async JavaScript, Defer Render Blocking CSS
1K+ active installs. Rated 4.8 from 90 reviews, updated 1 week ago.
- 3.
Speed Up500+ active installs. Rated 5.0 from 8 reviews, updated 3 months ago.
All 3 plugins tagged “async css”
Page Speed Optimizer
Down in the last 7 days:18#2,815by PI Web Solution12 days ago
HTTP2 Server push, Async JavaScript, Defer Render Blocking CSS, with fine rule set to control js and css on different page types,
- Installs
- 6K+
- Rating
- 4.7(64)
- Downloads
- 92/day
CSS JS Manager, Async JavaScript, Defer Render Blocking CSS
Down in the last 7 days:18#5,798by PI Web Solution11 days ago
CSS JS Manager, Async JavaScript, Defer Render Blocking CSS, Remove javascript, Remove CSS, Defer Render Blocking CSS, Both CSS and JS can be loaded A …
- Installs
- 1K+
- Rating
- 4.8(90)
- Downloads
- 57/day

Speed Up
Up in the last 7 days:2#8,820by Simone Nigro3 months ago
This plugin load the stylesheets asynchronously and improve page load times.
- Installs
- 500+
- Rating
- 5.0(8)
- Downloads
- 11/day