Simple CSS vs WP Add Custom CSS (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Quick Verdict
As of April 2026, Simple CSS has a higher user rating (4.9/5 from 60 reviews) and leads in active installations (80K+ vs 60K+). Both are free WordPress plugins. Simple CSS has accumulated 552K+ total downloads while WP Add Custom CSS has 991K+.
Detailed Comparison
| Metric | Simple CSS | WP Add Custom CSS | |
|---|---|---|---|
| Rating | 4.9/5 | ◄ | 4.8/5 |
| Total Reviews | 60 | ► | 90 |
| Active Installs | 80K+ | ◄ | 60K+ |
| Total Downloads | 552K+ | ► | 991K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 6 months ago | ◄ | 7 months ago |
| First Released | 2015 | 2014 | |
| Age | 11 years | 12 years | |
| WP Requires | 4.0+ | 4.0+ | |
| PHP Requires | false+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 1.1.1 | 1.2.1 |
Rating Breakdown
Simple CSS
WP Add Custom CSS
Download Trends
Over the past 30 days, Simple CSS averaged approximately 59 daily downloads while WP Add Custom CSS averaged 131.
Recent Reviews
Simple CSS Reviews
This is a really awesome plugin, and will remain awesome updates or not
Easy to use and gives you the access to behind the scenes places you need (like css on this page, for this table, fast and effectively, without digging through mountains of native wp and plugin styles
I want to love it more
This seems like a great idea, and it’s super to finally be clear of the small Additional CSS panel in native wordpress. What’s making me unsure if I should continue are 2 things: 1 – when you pr
Excellent plugin
By far the best plugin to add custom css, I have been using it for years now and in many websites. This topic was modified 2 years, 6 months ago by ws24.
WP Add Custom CSS Reviews
love it
simple and one click access. great plugin.
It does exactly what it says in the tin
Great simple and effective plugin.
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
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Frequently Asked Questions
Is Simple CSS or WP Add Custom CSS more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.