Nick Halsey

Live preview in the customizer allows you to see what plugins do to your site instantly. This experimental plugin brings the ability to activate and deactivate plugins from within the customizer. Plugin installation and updates could be a potential future phase depending on the success of this experiment.
Unfortunately, the customizer preview cannot currently reflect changes to the active plugins list. Additionally, plugins are not sandboxed – broken plugins activated from here could break your site. Use this plugin with caution. However, changes are not published to your live site until you “Save and Publish,” and the plugin manager does functionally activate and deactivate plugins. Preview functionality requires hooking into WordPress before plugins are loaded (for obvious reasons), which isn’t possible to do within a plugin.
See https://core.trac.wordpress.org/ticket/40451 for additional discussion.

Customize Plugin Manager

Live preview in the customizer allows you to see what plugins do to your site instantly. This experimental plugin brings the ability to activate and d …

Johan van der Wijk

Customize Admin is a powerful WordPress plugin that puts you in control of your website’s login page and dashboard layout. With its intuitive features, you can effortlessly tailor the look and feel of your WordPress login page and dashboard, creating a seamless and branded experience for your users.
Key Features:
Personalized Login Screen: Easily upload your custom image or logo to the login screen and define the link associated with the logo. Take your brand identity to the forefront and leave a lasting impression on your visitors from the very first interaction.
Streamlined HTML: Trim down and fine-tune your website’s HTML source code by selectively removing meta tags from the head section. Enjoy better control over your site’s code and optimize it for improved performance and SEO.
Dashboard Widget Management: Take charge of your dashboard widgets! Customize Admin enables you to disable selected widgets, allowing you to declutter and streamline your WordPress dashboard effortlessly.
Want to see the magic of Customize Admin in action? Check out the <a href="http://www.vanderwijk.com/wordpress/wordpress-customize-admin-plugin/" rel="nofollow ugc">plugin homepage</a> for more information and an enlightening screencast video that showcases the plugin’s capabilities.

Customize Admin

With this plugin you can use customize the appearance of the WordPress login page, dashboard and head section tags.

Customize Plugin Manager vs Customize Admin