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Simple Custom CSS Plugin vs WP Add Custom CSS (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Simple Custom CSS Plugin

Simple Custom CSS Plugin

4.7(159)

100K+ active installs

Free

Updated 1 year ago
View Simple Custom CSS Plugin
VS
WP Add Custom CSS

WP Add Custom CSS

4.8(90)

60K+ active installs

Free

Updated 7 months ago
View WP Add Custom CSS

Quick Verdict

As of April 2026, WP Add Custom CSS has a higher user rating (4.8/5 from 90 reviews) while Simple Custom CSS Plugin leads in active installations (100K+ vs 60K+). Both are free WordPress plugins. Simple Custom CSS Plugin has accumulated 3.1M+ total downloads while WP Add Custom CSS has 991K+.

Detailed Comparison

Rating
4.7/5Simple Custom CSS Plugin
►
WP Add Custom CSS4.8/5
Total Reviews
159Simple Custom CSS Plugin
◄
WP Add Custom CSS90
Active Installs
100K+Simple Custom CSS Plugin
◄
WP Add Custom CSS60K+
Total Downloads
3.1M+Simple Custom CSS Plugin
◄
WP Add Custom CSS991K+
Support Resolution
N/ASimple Custom CSS Plugin
WP Add Custom CSSN/A
Last Updated
1 year agoSimple Custom CSS Plugin
►
WP Add Custom CSS7 months ago
First Released
2013Simple Custom CSS Plugin
WP Add Custom CSS2014
Age
13 yearsSimple Custom CSS Plugin
WP Add Custom CSS12 years
WP Requires
3.0.1+Simple Custom CSS Plugin
WP Add Custom CSS4.0+
PHP Requires
false+Simple Custom CSS Plugin
WP Add Custom CSSfalse+
Business Model
FreeSimple Custom CSS Plugin
WP Add Custom CSSFree
Latest Version
4.0.7Simple Custom CSS Plugin
WP Add Custom CSS1.2.1

Rating Breakdown

Simple Custom CSS Plugin

4.7/5(159 reviews)
5
90%
4
4%
3
1%
2
0%
1
5%

WP Add Custom CSS

4.8/5(90 reviews)
5
91%
4
2%
3
2%
2
2%
1
2%

Recent Reviews

Simple Custom CSS Plugin Reviews

by Bub

Blocks Media view

This plugin block me from viewing my media files when I am, for instance, trying to add an image block to a page. Except for this I think it is an excellent plugin. My work-around will be to disable t

by cengoguven

So simple yet works perfect!

İt’s so easy to use and does the job as described.

by ellissei

Useful but doesn’t know modern properties

Simple and useful, but modern CSS properties like clamp(), repeat(), margin-inline, or less common units like dvh throw syntax errors. For beginners, this can be really confusing.

WP Add Custom CSS Reviews

by Jesko Bendmann

love it

simple and one click access. great plugin.

by danielepais

It does exactly what it says in the tin

Great simple and effective plugin.

by skylabb

Great plugin with a couple issues

I want to like this plugin but there are a couple things needed improvement. Having the option to choose output method is great, but useless when it’s not working. The “Use a CSS file” option does not

Frequently Asked Questions

Is Simple Custom CSS Plugin or WP Add Custom CSS more popular?
Simple Custom CSS Plugin has 100K+ active installations while WP Add Custom CSS has 60K+. Simple Custom CSS Plugin is the more widely-used plugin as of April 2026.
Which has better ratings — Simple Custom CSS Plugin or WP Add Custom CSS?
Simple Custom CSS Plugin has a 4.7/5 rating from 159 reviews, while WP Add Custom CSS has a 4.8/5 rating from 90 reviews.
Are Simple Custom CSS Plugin and WP Add Custom CSS free?
Simple Custom CSS Plugin is free and WP Add Custom CSS is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Simple Custom CSS Plugin or WP Add Custom CSS?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Simple Custom CSS Plugin was last updated 1 year ago and WP Add Custom CSS was last updated 7 months ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.