Simple Custom CSS and JS vs WP Add Custom CSS (September 2026)
Updated September 7, 2026 · Data from WordPress.org, refreshed daily · How this works
Both rank in the WordPress.org Custom CSS Plugins top 10: Simple Custom CSS and JS at #1 and WP Add Custom CSS at #4. Simple Custom CSS and JS leads on 4 of the 5 measures we track. Every number below comes straight from WordPress.org and is refreshed every day.
Simple Custom CSS and JS
Easily add Custom CSS or JS to your website with an awesome editor.
WP Add Custom CSS
Add custom css to the whole website and to specific posts and pages.
Who leads on what
Simple Custom CSS and JS leads on 4 of the 5 measures we track.
Simple Custom CSS and JS ranks higher on WordPress.org: #1 against #4 in Custom CSS Plugins.
Simple Custom CSS and JS has more users: 600,000+ active installs against 60,000+.
WP Add Custom CSS is rated higher: 4.8 out of 5 from 89 reviews, against 4.4 from 103 reviews.
Simple Custom CSS and JS has more reviews behind its score: 103 against 89.
Simple Custom CSS and JS was updated more recently, on August 20, 2026; WP Add Custom CSS on August 14, 2025.
Which one to pick
Each plugin is the better answer for the measure it actually leads on. Nothing here is a recommendation we invented.
Simple Custom CSS and JS
Pick Simple Custom CSS and JS if you go by where WordPress.org itself puts them, you want the plugin more sites already run, you want the score backed by more reviews or you want the one shipping releases most recently.
WP Add Custom CSS
Pick WP Add Custom CSS if the review score matters most to you.
Simple Custom CSS and JS vs WP Add Custom CSS side by side
| Simple Custom CSS and JS | WP Add Custom CSS | |
|---|---|---|
| Custom CSS Plugins ranking | #1 | #4 |
| Rating | 4.4 | 4.8 |
| Reviews | 103 | 89 |
| Active installs | 600,000+ | 60,000+ |
| Total downloads | 10,900,219 | 1,008,690 |
| Downloads, last 30 days | – | – |
| Last updated | Aug 20, 2026 | Aug 14, 2025 |
| First published | Dec 7, 2015 | Oct 4, 2014 |
| Tested up to WordPress | 7.1 | 6.8.8 |
| Requires PHP | 5.2.4 | – |
| Pricing | Free on WordPress.org | Free on WordPress.org |
30-day download figures appear after both plugins have 30 days of tracking.
Simple Custom CSS and JS ratings
WP Add Custom CSS ratings
How we compare these two
Every figure here is pulled from the WordPress.org plugin API every day at 03:00 UTC, for both plugins in the same run, so the two are always read on the same day. We compare only what the directory reports: active installs, the rating and how many reviews stand behind it, the last release date and, once we have a month of history, downloads over the last 30 days. Ratings are only called a win above 50 reviews each, because a handful of five-star reviews is not evidence. Nothing is weighted into an overall score, no measure is worth more than another, and neither Simple Custom CSS and JS nor WP Add Custom CSS can pay to appear here: the pair exists only because both plugins reached the Custom CSS Plugins top 10. Full methodology.
Simple Custom CSS and JS vs WP Add Custom CSS: common questions
Is Simple Custom CSS and JS better than WP Add Custom CSS?
Simple Custom CSS and JS leads on 4 of the 5 measures we track. Neither is better at everything, and the answer depends on which measure you weigh. Simple Custom CSS and JS ranks higher on WordPress.org: #1 against #4 in Custom CSS Plugins.
Which has more users, Simple Custom CSS and JS or WP Add Custom CSS?
Simple Custom CSS and JS ranks higher on WordPress.org: #1 against #4 in Custom CSS Plugins.
Which is rated higher, Simple Custom CSS and JS or WP Add Custom CSS?
Simple Custom CSS and JS has more users: 600,000+ active installs against 60,000+.
Are Simple Custom CSS and JS and WP Add Custom CSS free?
Both are free to install from WordPress.org. Simple Custom CSS and JS may also sell a paid version or add-ons. WP Add Custom CSS may also sell a paid version or add-ons.
Alternatives to Simple Custom CSS and JS and WP Add Custom CSS
Plugins that score close to both in the same WordPress.org rankings and tags.
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Weekly · free
What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.