 <p>There's a Jenkins plugin precisely for this matter: <a href="https://wiki.jenkins-ci.org/display/JENKINS/Plugin+Usage+Plugin+%28Community%29" rel="nofollow noreferrer">Plugin Usage</a></p> <p>Thanks to this wonderful plugin I found many redundant plugins to remove in the Plugin Manager (you will be able to remove plugins that has no dependencies).</p> <p>Here's how it looks - the plugin interface has a link on Jenkins sidebar. It lists all the plugins which any of an existing job uses (pressing on the expend button to see jobs names):</p> <p><a href="https://i.stack.imgur.com/y42oh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/y42oh.png" alt="enter image description here"></a></p>