A simple plugin that moves the WordPress Customizer CSS to an external file, improving performance and ensuring CSS persistence.
As of April 2026, Custom CSS to External File is a WordPress css plugin with 10 active installations and a 0/5 rating0. It has been downloaded 456 times in total. Requires WordPress 5.0+ and PHP 7.0+. Available on WordPress.org since 2025. Top alternative: WPCode – Insert Headers and Footers +….
Custom CSS to External File is a lightweight WordPress plugin that automatically moves the Custom CSS from the WordPress Customizer to an external CSS file. This improves website performance by reducing inline CSS and ensures that your custom CSS remains persistent even if the Customizer settings are reset.
<head>.| WordPress | 5.0+ requiredTested up to 6.8.5 |
| PHP | 7.0+ required |
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