CSS & JavaScript Toolbox: Code Snippet Manager for WordPress

Most of us have made changes to our website through our functions or custom-CSS files. Many modern themes also allow you to add custom code to your pages through their options panel. Code snippet managers like CSS & JavaScript Toolbox are also worth a look.

This plugin lets you add and manage CSS, JavaScript, HTML, and PHP code. You will be able to add styles and hacks without having to use custom plugins or modifying theme files. CSS & JavaScript Toolbox allows you to embed scripts from GitHub, CodeCanyon, and JSFiddle.

The PLUS version offers you even more features. It has Gutenberg blocks, light/dark editor themes, and full-width/full-screen modes. Its revision system can auto-backup your code blocks on each save.

[where to get it]