Christian Schenk

If you’re a WordPress admin you probably want a plugin with the following features:
<ul>
<li>install, update and delete plugins and themes</li>
<li>it should be able to handle various locations, i.e. at least these <a href="https://codex.wordpress.org/Plugins#Plugin_Repositories" title="WordPress Codex Plugin Repositories" rel="nofollow ugc">plugin repositories</a> and maybe some from <a href="http://www.google.com/search?q=wordpress%20plugins" title="Google search on WordPress plugins" rel="nofollow ugc">somewhere</a> else.</li>
<li>basic search functionality for all these plugins and themes</li>
</ul>
This plugins lets you do (almost) all of these things.
Have a look at this <a href="http://www.youtube.com/watch?v=-BzX7bv3DgM" title="Introduction to Extension Manager for WordPress" rel="nofollow ugc">video</a> to see how it works.
<h3>Compatibility</h3>
This plugin was tested with PHP 5.2.x. Currently it won’t work with 
older versions, i.e. PHP 4. Please be patient until I’ve fixed that.
But it’s possible that this plugin will never work with PHP 4 because 
it’s likely that I will not find the time to implement that. So please 
consider updating your installation of PHP.
If you’d like to help me fixing compatibility issues write me an <a href="http://www.christianschenk.org/legal-notice/#contact" title="Contact me" rel="nofollow ugc">e-mail</a>.
<h3>Videos</h3>
Have a look at this <a href="http://www.christianschenk.org/projects/wordpress-extension-manager/video-for-this-plugin/" title="Introduction to Extension Manager for WordPress" rel="nofollow ugc">video</a> to see how it works.
<h3>Licence</h3>
This plugin is released under the GPL.
<h3>Translation</h3>
This plugin is available in these languages:
<ul>
<li>English</li>
<li>German (I’m working on it)</li>
</ul>
If you want to help me translating it into other languages <a href="http://www.christianschenk.org/legal-notice/#contact" title="Contact me" rel="nofollow ugc">drop me a line</a>.

Extension Manager

This plugin helps you to install, upgrade, delete and search for plugins and themes.

kuckovic

CleanUp WP helps you quickly set up a fresh WordPress installation by removing default content, configuring sensible defaults, and enabling performance optimizations.
Why use CleanUp WP?
Every new WordPress installation comes with demo content you don’t need: “Hello World” post, sample pages, default comments, and bundled plugins like Hello Dolly and Akismet. Manually cleaning this up takes time.
CleanUp WP handles all of this with a single click, plus offers toggleable performance and security optimizations that you can enable or disable at any time.
Cleanup Tab (One-time tasks)
These tasks run once and get marked as done:
<ul>
<li>Delete “Hello World” post</li>
<li>Delete “Sample Page”</li>
<li>Delete “Privacy Policy” page</li>
<li>Delete default comment</li>
<li>Delete Hello Dolly & Akismet plugins</li>
<li>Delete unused themes (keeps active + parent)</li>
<li>Clear widget areas</li>
<li>Create main navigation menu</li>
<li>Set pretty permalinks (/%postname%/)</li>
<li>Disable comments by default</li>
<li>Rename “Uncategorized” to “News”</li>
<li>Disable user registration</li>
<li>Organize uploads by year/month</li>
<li>Set default image link to “None”</li>
<li>Discourage search engine indexing</li>
<li>Set timezone</li>
<li>Create static homepage</li>
</ul>
Optimize Tab (Toggleable)
These can be turned ON or OFF at any time:
<ul>
<li>Disable WordPress emojis (~20KB savings)</li>
<li>Disable oEmbed</li>
<li>Remove jQuery Migrate</li>
<li>Disable Dashicons on frontend</li>
<li>Clean up wp_head</li>
<li>Disable self-pingbacks</li>
<li>Reduce Heartbeat frequency</li>
<li>Disable XML-RPC</li>
<li>Hide WordPress version</li>
<li>Disable file editing</li>
<li>Disable user enumeration</li>
<li>Clean dashboard (keep only Site Health and At a Glance)</li>
</ul>

CleanUp WP

Clean up your fresh WordPress installation with one click. Remove demo content, set sensible defaults, and toggle performance optimizations.

Extension Manager vs CleanUp WP