#359 by installs
Simple Custom CSS Plugin
Add Custom CSS to your WordPress site without any hassles.
- Installs
- 100,000+
- Rating
- 4.7 (159)
- Updated
- 20 months ago
Simple CSS
Add CSS to your website through an admin editor, the Customizer or a metabox for page/post specific CSS.
- Active installs
- 80,000+
- #545 of 1,000
- Downloads, all time
- 566.8K
- 566,784
- Downloads, 30 days
- 2.2K
- 533 in the last 7
- Rating
- 4.9 / 5
- 60 reviews
- Last updated
- 14 months ago
- Sep 15, 2025
- Version
- 1.1.1
- 8 releases
Upkeep and compatibility
| Last updated | September 15, 2025Not updated for over a year |
|---|---|
| Tested up to | WordPress 6.8.12Older than WordPress 7.1.4, the current release |
| Needs WordPress | 4.0 or newer |
| Needs PHP | Not stated |
| First published | November 21, 2015 |
| Support, last two months | No threads opened |
Reviews
4.9 / 5 from 60 reviews
| 5 stars | 56 |
|---|---|
| 4 stars | 4 |
| 3 stars | 0 |
| 2 stars | 0 |
| 1 star | 0 |
Downloads, last 30 days
What the author says it does
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
The opening of the plugin's own description. The full text, installation notes and changelog are on its WordPress.org page.
Questions the author answers
How do I add CSS using your plugin?
- Make sure Simple CSS is activated.
- Navigate to “Appearance > Simple CSS” and add your CSS to the editor.
How do I add CSS using the Customizer?
- Make sure Simple CSS is activated.
- Navigation to “Appearance > Customize” and open the “Simple CSS” section.
How do I change the editor color?
- In “Appearance > Simple CSS”, change the “Dark” option below the “Save CSS” button to “Light”.
How do I add CSS that applies only to one page?
- Navigate to your page or post in the Dashboard and look for the “Simple CSS” metabox.
Latest changelog entry
- Fix PHP notice when Simple CSS hasn’t been saved yet
Screenshots
The dark theme of the CSS editor. 
The light theme of the CSS editor. 
The CSS editor in the Customizer. 
The CSS editor metabox.
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Where this page's numbers come from
Read from the WordPress.org plugin API on , when WordPress 7.1.4 was the current release. WordPress.org rounds active installs into buckets. These are the directory's figures, not my verdict, and I haven't tested this plugin. The author takes donations at their donate page.