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Media File Limiter is a lightweight and efficient plugin designed to strengthen your WordPress upload security.
It limits the maximum upload file size (in MB) and blocks specific dangerous file extensions (e.g., .exe, .php, .html, .js), preventing malicious or oversized files from being uploaded to your media library.
Unlike traditional file validation, this plugin operates at the earliest possible stage of the upload process via the wp_handle_upload_prefilter hook, ensuring that dangerous files are blocked before WordPress processes them.
Key Features 
Set a custom maximum upload size (in MB).
Define forbidden file extensions (comma-separated).
Displays current PHP/WordPress upload limits for reference.
Early-stage security enforcement — before files reach media processing.
Fully translatable and internationalized (media-file-limiter text domain).
Compatible with multisite environments.
Why This Plugin? 
WordPress allows large files and executable extensions under certain misconfigurations, which can lead to:
Server performance degradation.
Potential remote code execution (RCE) risks.
Media library clutter and upload errors.
Media File Limiter addresses these issues with a simple, configurable interface under the WordPress “Settings → Media Limit” page.
<h3>License</h3>
This plugin is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or any later version.
This plugin is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
<h3>Additional Notes</h3>
The plugin follows WordPress Coding Standards (WPCS).
All options use the Settings API (register_setting / add_settings_field).
Security first: early execution priority (wp_handle_upload_prefilter, priority 1).
Uninstall hook (register_uninstall_hook) ensures full cleanup.

Media File Limiter

Restrict maximum upload file size and block dangerous extensions at upload time. Ensures early-stage validation for enhanced WordPress media security.

Sully

Improve your Media Library functionality by introducing a new column that showcases the sizes of files, including collective variants. This lightweight plugin empowers you to effortlessly sort files based on their respective file sizes and view variants.
Primary Features:
<ul>
<li>Tested with meida libraries with over 50,000 attachments</li>
<li>View file size of primary file and their variants</li>
<li>Sort the media library by file size to find those pesky large file</li>
<li>View all variants of an image with the ability to download them</li>
</ul>
<iframe loading="lazy" title="WordPress Media Library File Size Plugin" width="750" height="422" src="https://www.youtube.com/embed/Tt5kdo8NH70?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
Images and videos play a crucial role in engaging visitors and making a website visually appealing. However, managing these files can become a daunting task, especially when you have a large number of media files on your website. WordPress does offer a media library that allows users to upload and manage media files, but it falls short when it comes to providing information about file sizes. This is where the “Media File Sizes” plugin comes in.
<ul>
<li>By default sizes may show without the need to run an index however, indexing the Media Library is highly recommended.</li>
<li>If sizes do not show, you can click the Index Media button within the Media Library to index/re-index items.</li>
<li>Shows file size of primary file, plus combined sized for variants (images).</li>
<li>Ability to order the media items by file size.</li>
</ul>
Check out our other plugins:
<ul>
<li>✨ <a href="https://wordpress.org/plugins/single-post-page-export/" rel="ugc">Export Single Post Page</a></li>
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<li>🙍‍♂️ <a href="https://wordpress.org/plugins/view-user-metadata/" rel="ugc">View User Metadata</a></li>
<li>🔠 <a href="https://wordpress.org/plugins/enable-turnstile-cloudflare-for-gravity-forms/" rel="ugc">Enable Turnstile (Cloudflare) for Gravity Forms</a></li>
<li>⭐️⭐️⭐️⭐️⭐️ <a href="https://ss88.us/plugins/gravity-forms-freescout?utm_campaign=OtherPlugins" rel="nofollow ugc">Gravity Forms to FreeScout</a></li>
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Media Library File Size


Nice addition to the feature set of the WP Media library. Helpful to identify large media files that are taking up server space. Great work!


Handy Little Plugin

Displays the Media Library file sizes, including collective variants, and adds the ability to view/download each variant image!

Media File Limiter vs Media Library File Size