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Free Plugin by Tom v1.1.1

Simple CSS

Add CSS to your website through an admin editor, the Customizer or a metabox for page/post specific CSS.

Simple CSS

The facts

Rating
4.9★ from 60
Active installs
80k+
Price
Free
Last updated
15 Sep 2025
Added
Nov 2015
Requires WP
4.0
Tested up to
WP 6.8.8
Downloads
563,113

Our analysis

AI-assisted

Simple CSS is a WordPress plugin designed to help you add custom CSS to your site. It features an admin editor and a live preview editor within the Customizer, allowing you to see changes in real-time. Additionally, it includes a metabox that lets you apply CSS to specific pages or posts.

This plugin is suitable for users who want to customise the appearance of their WordPress site without needing extensive coding knowledge. It provides a straightforward way to manage CSS styles directly from the WordPress dashboard.

Best for: This plugin suits WordPress users looking to easily add and manage custom CSS.

What it does well

  • Full featured admin CSS editor
  • Live preview editor in the Customizer
  • Metabox for page/post specific CSS
  • Dark and light editor themes
  • High rating of 4.9 out of 5

Where it falls short

  • Limited information on advanced features

Verdict

Simple CSS offers a user-friendly solution for adding custom styles to your site. It is a good choice for those who want to enhance their site's design with minimal effort.

From the developer

Tom's own description of Simple CSS, lightly tidied.

Need to add some custom CSS to your site? Simple CSS gives you an awesome admin editor and a live preview editor in the Customizer so you can easily add your CSS.

Want your CSS to only apply on a specific page or post? Simple CSS adds a metabox which allows you to do just that.

Check out GeneratePress, our awesome WordPress theme! (https://wordpress.org/themes/generatepress)

Features include:

  • Full featured admin CSS editor
  • Dark and light editor themes
  • CSS editor in the Customizer so you can live preview your changes
  • Metabox for page/post specific CSS

Read the full description on the official page →

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