Best custom admin CSS plugins for WordPress
The most popular custom admin CSS plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Admin CSS MU leads with 10K+ active installs, ahead of NO admin premium NAGS (100+). All 2 plugins tagged “custom admin 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 2 custom admin CSS plugins
- 1.
Admin CSS MUThe most installed custom admin CSS plugin, with 10K+ active installs. Rated 4.5 from 26 reviews, last updated 1 year ago. Tested only up to WordPress 6.7.11.
- 2.
NO admin premium NAGS100+ active installs. Only 3 reviews so far, last updated 2 years ago. Tested only up to WordPress 6.5.14.
All 2 plugins tagged “custom admin css”
Admin CSS MU
Down in the last 7 days:2#1,643by Arun Basil Lal1 year ago
Add custom CSS to style the WordPress Admin. Works with Multisites.
- Installs
- 10K+
- Rating
- 4.5(26)
- Downloads
- 34/day
NO admin premium NAGS
Down in the last 7 days:10#15,890by kontur.us2 years ago
Simply stop the abusive admin nags from All in One SEO plugin and as well from YOAST Seo! Plus: Add your own CSS to the Admin Area.
- Installs
- 100+
- Rating
- 5.0(3)
- Downloads
- 0/day