ognjen.kuljic

Some very useful plugins like Regenerate Thumbnails leaves old files behind, so it is good practice to clean after it.
Features: 
*Remove all unused files from upload dir (Unattached files to posts or pages), 
*Remove all leftover files (forgotten files in upload dir).

qCleanup

This plugin allows you to delete unused and leftover files from upload dir. In one click you can rid of all unwanted files and reduce space usage.

Alsvin Tech

By default, when you delete a post or page, any associated media files or attachments to that post do not get deleted. Keeping these orphan files to your server will eat up a lot of precious web space for no reason.
Using this plugin when you delete a post, any associated attachments will also get deleted automatically.
Before deleting any media file or attachment the plugin smartly checks that the attachment is not in use elsewhere, i.e. on any other post, page, or product.
Works with popular Page Builders:
<ul>
<li>Elementor</li>
<li>Thrive Architect</li>
<li>Divi Builder</li>
<li>Brizy</li>
<li>and many more…</li>
</ul>
Works with all popular plugins such as:
<ul>
<li>WooCommerce</li>
<li>Easy Digital Downloads</li>
<li>LearnDash</li>
<li>BuddyPress</li>
<li>MemberPress</li>
<li>Paid Memberships Pro</li>
<li>and many more…</li>
</ul>
Features:
<ul>
<li>No configuration required</li>
<li>Just activate and use</li>
<li>Save your precious server storage</li>
<li>Works automatically on post/page deletion</li>
</ul>

Delete Post with Attachments

A simple plugin to delete attached media files e.g. images/videos/documents, when the post is deleted. Supports Elementor, Divi Builder, Thrive Archit …

qCleanup vs Delete Post with Attachments