This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Custom CSS, JS & PHP


Custom CSS, JS & PHP is a lightweight plugin that lets you add:

  • custom CSS (front-end and/or back-end),
  • custom JavaScript (front-end and/or back-end), and
  • custom PHP.


  • We are open to your suggestions and feedback. Thank you for using or trying out one of our plugins!


  • Custom CSS.
  • Custom JS.
  • Custom PHP.


  1. Upload the entire plugin folder to the /wp-content/plugins/ directory.
  2. Activate the plugin through the “Plugins” menu in WordPress.
  3. Start by visiting plugin settings at “Tools > Custom CSS”, “Tools > Custom JS” or “Tools > Custom PHP”.


18 septimber, 2020
It is an excellent application, it helped me a lot on my wordpress page, the programmer is very attentive to help. It has other plugins that I always use too. Highly recommended
Read all 2 reviews

Contributors & Developers

“Custom CSS, JS & PHP” is open source software. The following people have contributed to this plugin.


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Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.


2.2.0 – 28/09/2021

  • Dev – Plugin is initialized on the plugins_loaded action now.
  • Dev – Localization – load_plugin_textdomain() moved to the init action.
  • Dev – Code refactoring.
  • Tested up to: 5.8.

2.1.0 – 03/03/2020

  • Dev – Admin settings – Split into three separate sections: “Custom CSS”, “Custom JS” and “Custom PHP”; menu added.
  • Dev – Admin settings – Descriptions updated; restyled.
  • Dev – Admin settings – Checkbox – Wrapped in <label> now.
  • Donate link removed.
  • Tested up to: 5.3.

2.0.1 – 18/10/2018

  • Dev – “CSS position” and “JS position” options added.

2.0.0 – 28/09/2018

  • Feature – “Custom JS” section added.
  • Feature – “Custom PHP” section added.
  • Dev – Major code refactoring.
  • Dev – Settings screen restyled.
  • Dev – POT file added.

1.0.0 – 07/04/2017

  • Initial Release.