WP Add Custom CSS

69 Quality Score

Active Installs

21/30

At 60,000 active installs and a popularity subscore of 71, it has a modest but established user base, dwarfed by top alternatives like WPCode at 3 million.

Update Freshness

15/25

Last updated August 2025 and tested against WordPress 6.8.5, the maintenance signals are solid despite the modest score driven by a small install base.

User Rating

14/15

A 96 out of 100 from 90 reviews is an excellent rating, indicating users who do install it tend to be very satisfied with the focused functionality.

Support Health

8/15

With zero support threads, there is no public track record of how the author responds to issues, which is a real concern for troubleshooting.

WP Compatibility

11/15

Requiring only WordPress 4.0 gives it a very wide compatibility range, though the compatibility subscore of 75 reflects the lack of a declared PHP version requirement.

Scores higher than 22% of indexed plugins

About

Add custom css to the whole website and to specific posts and pages.

Active Installs 60k+

Rating ★★★★½ 4.8/5

Last Updated 2025-08-14 10:21am GMT

Requires WordPress 4.0+

Tested Up To 6.8.8

✓ No known vulnerabilities

What It Does

WP Add Custom CSS lets you inject custom CSS rules either site-wide or scoped to individual posts and pages through a simple admin interface. It avoids the need to edit your theme's stylesheet directly, so your customizations survive theme updates. Scope is limited to CSS only, with no support for JavaScript, HTML snippets, or header/footer scripts.

Who It's For

This plugin fits site owners who want a quick, low-friction way to tweak styling on a blog, landing page, or small business site without touching theme files or learning a full customizer workflow. It is well suited to freelancers and small teams making targeted visual adjustments to specific pages rather than building an entire design system.

Who Should Skip It

If you already use a full site editor, a child theme, or a page builder like Elementor or Bricks that handles custom CSS natively, this plugin is redundant. Developers and agencies managing complex code snippets, PHP, or JavaScript should look at WPCode or Code Snippets instead, since this tool only handles CSS.

The Bottom Line

WP Add Custom CSS does one thing and does it well, earning strong user ratings and recent maintenance, but its narrow CSS-only scope and absent support history make it a niche choice. It is a reasonable pick for non-technical users who only need page-level CSS overrides, but most WordPress site owners will get better long-term value from WPCode or Simple Custom CSS and JS. The overall quality score of 72.52 reflects solid functionality held back by limited scope and unproven support.

Pick this if you need to insert PHP, JavaScript, or HTML in addition to CSS, and want a much larger user base with broader feature coverage.

Code Snippets 88/100

Pick this if you want to run PHP snippets safely without editing functions.php, which WP Add Custom CSS cannot do at all.

Insert Headers And Footers 87/100

Pick this if your main goal is adding scripts or analytics to headers and footers, since it is purpose-built for that workflow.

Simple Custom CSS and JS 87/100

Pick this if you want both CSS and JavaScript injection in a single lightweight plugin, which fills the gap WP Add Custom CSS leaves open.

Blocks Animation: CSS Animations for Gutenberg Blocks 84/100

Pick this if your priority is adding motion and animations to Gutenberg blocks rather than general styling tweaks.