Simple Custom CSS and JS – WordPress plugin Free download

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Simple Custom CSS and JS


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.


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


Manage Custom Codes

Add/Edit Javascript

Add/Edit CSS


From the WP admin panel, click “Plugins” -> “Add new”.
In the browser input box, type “Simple Custom CSS and JS”.
Select the “Simple Custom CSS and JS” plugin and click “Install”.
Activate the plugin.


Click to Download the plugin from this page.
Save the .zip file to a location on your computer.
Open the WP admin panel, and click “Plugins” -> “Add new”.
Click “upload”.. then browse to the .zip file downloaded from this page.
Click “Install”.. and then “Activate plugin”.


Click to Download the plugin from this page.
Extract the .zip file to a location on your computer.
Use either FTP or your hosts cPanel to gain access to your website file directories.
Browse to the wp-content/plugins directory.
Upload the extracted custom-css-js folder to this directory location.
Open the WP admin panel.. click the “Plugins” page.. and click “Activate” under the newly added “Simple Custom CSS and JS” plugin.


What if I want to add multiple external CSS codes?

If you write multiple codes of the same type (for example: two external CSS codes), then all of them will be printed one after another

Will this plugin affect the loading time?

When you click the Save button the codes will be cached in files, so there are no tedious database queries.

Does the plugin modify the code I write in the editor?

No, the code is printed exactly as in the editor. It is not modified/checked/validated in any way. You take the full responsability for what is written in there.

My code doesn’t show on the website

Try one of the following:
1. If you are using any caching plugin (like “W3 Total Cache” or “WP Fastest Cache”), then don’t forget to delete the cache before seing the code printed on the website.
2. Make sure the code is in Published state (not Draft or in Trash).
3. Check if the wp-content/uploads/custom-css-js folder exists and is writable

Does it work with a Multisite Network?


What if I change the theme?

The CSS and JS are independent of the theme and they will persist through a theme change. This is particularly useful if you apply CSS and JS for modifying a plugin’s output.

Can I use a CSS preprocesor like LESS or Sass?

For the moment only plain CSS is supported, but you can check out the Pro version in case you need a CSS preprocessor.

Can I upload images for use with my CSS?

Yes. You can upload an image to your Media Library, then refer to it by its direct URL from within the CSS stylesheet. For example:
div#content {
background-image: url(‘’);

Can I use CSS rules like @import and @font-face?


Who can publish/edit/delete Custom Codes?

This plugin is simply and fix the needs to customize some CSS in admin side.
Thank you for this!

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