MU Plugins Tool allows you to activate or deactivate any MU (must-use) plugins that are installed - on an individual basis or all at once.
As of April 2026, MU Plugins Tool is a WordPress mu plugin with 20 active installations and a 5/5 rating from 1 reviews. It has been downloaded 3.6K+ times in total. Requires WordPress 3.0+ and PHP false+. Available on WordPress.org since 2012. Last updated 13 years ago — may have compatibility concerns. Top alternative: Where Am I.
When you activate MU Plugins Tool, a folder named ‘mu-plugins’ is created, if necessary, in your WordPress installation (default ‘WordPress_Root/wp-content/mu-plugins’) and a starter mu-plugin is created. The starter mu-plugin changes the admin footer text once you’ve enabled it through MU Plugins Tool. For more information, see the Codex Must-Use Plugins page.
I would like to thank David Gwyer, the developer of Plu…
| WordPress | 3.0+ requiredTested up to 3.5.2 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.