This is a custom plugin with a custom Plupload Drag & Drop uploader with WordPress. You can use this example code into your custom plugin or themes. It's generally useful when you have frontend bulk upload and you don't wanna use WordPress Media Library for bulk upload and wanna go with your upload method using chuck system.

WordPress Downloader. The script's main purpose is to provide an easier way to download all files inside wp-content/uploads directory

Ability to filter WordPress media files by category and use bulk action to attach or detach multiple media files to selected category. Restricts access of media files for different user roles based on media category. Create custom role and restrict access to categories directly from the plugin's UI.

This plugin adds feature to change your Media Attachments Files Name Easily.