Description
At a glance
Simple Custom CSS and JS v3.54 — free WordPress plugin download. Key facts: 600K+ active installs · 4.4/5 rating from 103 reviews · updated August 20, 2026 · requires WordPress 4.2+ & PHP 5.2.4+.
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
Frequently asked questions
What is Simple Custom CSS and JS?
Simple Custom CSS and JS is a free WordPress plugin available under the GPL license. The current version is 3.54. It is active on over 600K websites.
Is Simple Custom CSS and JS free to download?
Yes — Simple Custom CSS and JS 3.54 is a free GPL download with no hidden fees, no account needed, and no feature locked behind a paywall in this package. Users rate it 4.4 out of 5 based on 103 reviews.
How do I install Simple Custom CSS and JS 3.54?
Download the ZIP file from this page, then in your WordPress dashboard go to Plugins → Add New → Upload Plugin, choose the file, click Install Now, then Activate. The plugin works immediately after activation — no license key or extra setup is required for the core features.
What are the requirements for Simple Custom CSS and JS?
Simple Custom CSS and JS 3.54 requires WordPress 4.2 or higher and PHP 5.2.4 or higher. Most modern WordPress hosts already meet these versions. Running older versions may cause features to break, so update WordPress and PHP first if your site is behind.
When was Simple Custom CSS and JS last updated?
Version 3.54 was last updated on August 20, 2026. This page is refreshed automatically, so the download here always matches the newest version we have verified.
Is the Simple Custom CSS and JS download safe?
The file is sourced directly from the official WordPress.org repository — the same file the developer published. It is served unmodified, so what you install here is byte-identical to the official release.
Version: 3.54
Updated: October 1, 2026
Technical details
| Version | 3.54 |
|---|---|
| Last updated | August 20, 2026 |
| Active installs | 600,000+ |
| Rating | ★★★★☆ 4.4/5 (103 reviews) |
| Requires WordPress | 4.2 or higher |
| Requires PHP | 5.2.4 or higher |
| Author | SilkyPress |
| Tags | add-style, custom-css, custom-js, customize-theme, site-css |
Demo Simple Custom CSS and JS
Download Simple Custom CSS and JS
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