Add Admin CSS
Easily define additional CSS (inline and/or by URL) to be added to all administration pages.
The facts
- Rating
- 4.9★ from 35
- Active installs
- 10k+
- Price
- Free
- Last updated
- 8 Dec 2025
- Added
- Dec 2011
- Requires WP
- 5.5
- Tested up to
- WP 6.9.7
- Downloads
- 145,296
Our analysis
AI-assistedAdd Admin CSS is a WordPress plugin that allows you to modify the appearance of the WordPress admin pages using custom CSS. You can hide elements, change fonts, colours, and sizes, among other modifications. The plugin provides hooks to customise how and when the CSS is applied, making it flexible for various administrative needs.
This plugin is suitable for WordPress administrators and developers who want to personalise the admin interface. It enables a tailored experience without altering core files, ensuring that changes are easily maintainable.
Best for: WordPress administrators and developers looking to customise the admin interface.
What it does well
- ✓Allows custom CSS modifications for admin pages
- ✓Provides hooks for customisation
- ✓Supports both inline CSS and external files
- ✓Free to use from the WordPress.org directory
- ✓Well-rated by users
Where it falls short
- •Limited information on specific use cases or examples
Verdict
Add Admin CSS offers a straightforward way to enhance the WordPress admin experience through custom CSS. It is a useful tool for those wanting to make specific visual adjustments.
From the developer
Scott Reilly's own description of Add Admin CSS, lightly tidied.
Ever want to tweak the appearance of the WordPress admin pages by hiding stuff, moving stuff around, changing fonts, colors, sizes, etc? Any modification you may want to do with CSS can easily be done via this plugin.
Using this plugin you’ll easily be able to define additional CSS (inline and/or files by URL) to be added to all administration pages. Hooks are provided to customize the output of the CSS, the CSS files, and if/when the CSS should even be output (see Hooks section).
Links: Plugin Homepage | Plugin Directory Page | GitHub | Author Homepage
Developer Documentation
Developer documentation can be found in DEVELOPER-DOCS.md. That documentation covers the hooks provided by the plugin.
As an overview, these are the hooks provided by the plugin:
c2c_add_admin_css: Filter to customize the CSS that should be added directly to the admin page head.c2c_add_admin_css_files: Filter to customize the list of CSS files to enqueue in the admin.c2c_add_admin_css_disable_css: Filter to customize if the CSS defined via this plugin should be output or not.
Tagged as
industry
Knowledge Base & Documentation
feature
Thorough Documentation
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