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Simple Custom CSS Plugin vs Core Framework (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
Core Framework

Core Framework

5(41)

10K+ active installs

Free

Updated 1 week ago
View Core Framework

Quick Verdict

As of April 2026, Core Framework has a higher user rating (5/5 from 41 reviews) while Simple Custom CSS Plugin leads in active installations (100K+ vs 10K+). Both are free WordPress plugins. Simple Custom CSS Plugin has accumulated 3.1M+ total downloads while Core Framework has 160K+.

Detailed Comparison

Rating
4.7/5Simple Custom CSS Plugin
►
Core Framework5/5
Total Reviews
159Simple Custom CSS Plugin
◄
Core Framework41
Active Installs
100K+Simple Custom CSS Plugin
◄
Core Framework10K+
Total Downloads
3.1M+Simple Custom CSS Plugin
◄
Core Framework160K+
Support Resolution
N/ASimple Custom CSS Plugin
Core FrameworkN/A
Last Updated
1 year agoSimple Custom CSS Plugin
►
Core Framework1 week ago
First Released
2013Simple Custom CSS Plugin
Core Framework2024
Age
13 yearsSimple Custom CSS Plugin
Core Framework2 years
WP Requires
3.0.1+Simple Custom CSS Plugin
Core Framework6.0+
PHP Requires
false+Simple Custom CSS Plugin
Core Framework8.0+
Business Model
FreeSimple Custom CSS Plugin
Core FrameworkFree
Latest Version
4.0.7Simple Custom CSS Plugin
Core Framework1.10.2

Rating Breakdown

Simple Custom CSS Plugin

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

Core Framework

5/5(41 reviews)
5
95%
4
5%
3
0%
2
0%
1
0%

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.

Core Framework Reviews

by Martin Sauter

Love it!

Invaluable for any WordPress site without a page builder.

by lanxalot

Best in class – no lock-in – great support – we love Core

I have used ACSS and other Frameworks. I love Core as it is intuitive, lightm it has the right ammount of features for me, and you can easily remove the builder plugin (if you choose to use one) by si

by groggy72

Excellent Investment

This is a massive productivity investment. I bought the bricks addon and it’s a game changer.

Frequently Asked Questions

Is Simple Custom CSS Plugin or Core Framework more popular?
Simple Custom CSS Plugin has 100K+ active installations while Core Framework has 10K+. Simple Custom CSS Plugin is the more widely-used plugin as of April 2026.
Which has better ratings — Simple Custom CSS Plugin or Core Framework?
Simple Custom CSS Plugin has a 4.7/5 rating from 159 reviews, while Core Framework has a 5/5 rating from 41 reviews.
Are Simple Custom CSS Plugin and Core Framework free?
Simple Custom CSS Plugin is free and Core Framework is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Simple Custom CSS Plugin or Core Framework?
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 Core Framework was last updated 1 week ago.

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