Simple Custom CSS and JS
Easily add Custom CSS or JS to your website with an awesome editor.
4.4(102 reviews)
·700K+ active installs·Updated 4 weeks agoAs of April 2026, Simple Custom CSS and JS is a WordPress site css plugin with 700K+ active installations and a 4.4/5 rating from 102 reviews. It has been downloaded 10M+ times in total. Requires WordPress 3.0.1+ and PHP 5.2.4+. Available on WordPress.org since 2015. Actively maintained — updated within the last month. Downloads are down 7% this week. Support resolution rate: 100%.
4.4/5102 reviews
700K+active installs
100%resolved
11 yearssince 2015
Overview
Customize your WordPress site’s appearance by easily adding custom CSS and JS code without even having to modify your theme or plugin files. This is perfect for adding custom CSS tweaks to your site.
Features
- Text editor with syntax highlighting
- Print the code inline or included into an external file
- Print the code in the header or the footer
- Add CSS or JS to the frontend or the admin side
- Add as many codes as you want
- Keep your changes also when you change the theme
Screenshots
Ratings & Reviews
4.4102 reviews
5 ★
81
4 ★
4
3 ★
4
2 ★
2
1 ★
11
Recent Reviews
Splendid
by ishraqued·1 week ago
Great Plugin
- This topic was modified 2 days, 7 hours ago by ishraqued.
Great customer support and response to my need
by michaelmatzkin·2 months ago
I appreciate you addressing what had been an incompatibility with another plugin. This fix helps me make better use of your product.
Just what I was looking for
by Heath Woodward·7 months ago
Works perfectly. Great plugin.
Great Product, Great Support
by Zayadur·9 months ago
There is no other plugin that allows you to control settings like WP conditional location rules, stores versioned copies of the files in a directory making local development easier, and is a simple UX to deploy rapid updates cutting down on development time. On top of that, the support team has gone above and beyond to address and fix limitations to allow my business and developers’ workflows to continue without a hitch. I highly recommend this plugin to anyone that’s looking for a definitive solution to deploy HTML, CSS, JS snippets on a per-post basis.
Very Simple and Multi-Functional
by joseeneveu·1 year ago
Thanks to this plugin, I was able to make modifications to parts of my own website that had been eluding me for WEEKS through other CSS plugins that I had been trying to use.
Download Trends
Today: 4KYesterday: 4KThis week: 22KPeriod total: 1.9M
Compatibility
| WordPress | 3.0.1+ requiredTested up to 6.9.4 |
| PHP | 5.2.4+ required |
Version Adoption
v3.52
31.8%
Other
30.2%
v3.51
24.1%
v3.50
13.9%
Frequently Asked Questions
Changelog
3.52
- 03/06/2026
- Fix: don’t load block_css.css or block_js.js on the frontend
- Add option “Remove comment from externally linked custom codes”
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.