Peter Lawrenson

By default, WordPress will load every plugin on every page. The Simple Plugin Selector (SPS) plugin allows the administrator to select which plugins are used on a page-by-page basis. This prevents unneeded plugins and plugin support files from loading. HTTP requests and download size will be reduced, so improving website performance for the visitor.
For example, you probably use your contact form plugin only on your Contact Us page. SPS allows you to deactivate it when the page request is for one of your other pages, so your users don’t download your contact form style sheets and scripts unnecessarily.
The plugin has a user-friendly interface, so the administrator can see easily which plugins are running on each page.
Plugin filtering is disabled in admin context.
Not for newbies! The administrator must have a clear grasp of which plugins are required for each page, otherwise some pages will have errors because a required plugin is not loaded.
<h3>Deactivating</h3>
Deactivating SPS in the normal plugins list will deactivate plugin filtering and remove the SPS file from the mu-plugins directory.
Removing the SPS plugin using FTP will leave an unwanted SPS file in mu-plugins, but plugin filtering will be disabled.
SPS settings are not deleted by plugin deactivation or deletion. Reactivating should pickup filtering where it left off.
<h3>Settings</h3>
Go to Dashboard > Settings > Simple Plugin Selector to set which plugins are required on a page by page basis. If the site has cache or optimize plugins, they should be cleared after changing any SPS settings.
If a new page, post or product is created, all plugins will be activated for that by default until set otherwise in SPS settings.
If a new plugin is activated, it will be loaded for all pages by default until set otherwise in SPS settings.

Simple Plugin Selector

Select which plugins are activated on a page-by-page basis.

wpseek

Better Plugin Compatibility Control makes it easy for the blog administrator to check compatibility of all installed plugins. The plugin adds version compatibility info to the plugins page to inform the admin at a glance if a plugin is compatible with the current WP version and PHP version. Until now you had to look it up on the respective plugin page. It’s now up to the admin wether to deactivate a non-compatible plugin or not.
Included languages:
<ul>
<li>English</li>
<li>German (de_DE) (Thanks to me ;-))</li>
<li>Finnish (fi_FI) (Thanks to C. Hellberg for contributing finnish language)</li>
<li>Belorussian (by_BY) (Thanks for contributing belorussian language goes to <a href="https://www.fatcow.com" rel="nofollow ugc">Marcis Gasuns</a>)</li>
<li>Russian (ru_RU) (Thanks for contributing russian language goes to <a href="https://www.ipower.com" rel="nofollow ugc">iPower</a>)</li>
<li>Uzbek (uz_UZ) (Thanks for contributing uzbek language goes to <a href="https://www.comfi.com" rel="nofollow ugc">Alexandra Bolshova</a>)</li>
<li>French (fr_FR) (Thanks for contributing french language goes to <a href="https://www.tolingo.com" rel="nofollow ugc">tolingo translations</a>)</li>
<li>Spanish (es_ES) (Thanks for contributing spanish language goes to nomeconsumas.org)</li>
<li>Hebrew (he_IL) (Thanks for contributing hebrew language goes to Atar4U / https://profiles.wordpress.org/ahrale/)</li>
<li>Simplified Chinese (zh_CN) (Thanks for contributing simplified chinese language goes to 斌果)</li>
<li>Italian (it_IT) (Thanks for contributing italian language goes to venerdi)</li>
</ul>
<a href="https://twitter.com/wpseek" title="Developer on Twitter" rel="nofollow ugc">Developer on Twitter</a>
Looking for more WordPress plugins? Visit <a href="https://www.schloebe.de/portfolio/" rel="nofollow ugc">www.schloebe.de/portfolio/</a>
<h4>Licence</h4>
This plugins is released under the GPL, you can use it free of charge on your personal or commercial blog.

Better Plugin Compatibility Control

Adds version compatibility info to the plugins page to inform the admin at a glance if a plugin is compatible with the current WP and PHP version.

Simple Plugin Selector vs Better Plugin Compatibility Control