This plugin hasn’t been tested with the latest three 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.

🗘 Feedback

  • 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 September 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 and 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.

Change Log

2.2.1 – 09/12/2022

  • Tested up to: 6.1.
  • Readme.txt updated.
  • Deploy script added.

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.