Quantum Manager (QM) is a media and file manager that is completely free and allows its users to either upload or insert and resize different images in the WYSIWYG editing software. The file manager also has built-in integration with the free photobank, Unsplash, allowing numerous high-quality images to instantly be direct onto your site.
The platform comes with several other plugin options as well.
The Quantum Manager Media Plugin (QMMP) overrides com_media. This ultimately means that they are immediately directed to the Quantum Manager site even after going to the core Joomla media manager.
The Quick Icon Plugin (QIP) will save time when managing different files and media content while inside of the Joomla platform itself. There, you will be able to freely work with different images inside of the WYSIWYG editor.