This PHP video downloader script allows you to download from 40 websites with one-click. You will get good support and regularly updated software also. And YouTube video downloader script can fetch videos from 144P to 8K and allows to you highspeed download with removing YouTube bandwidth speed limit. This is a WordPress based script so you will get a plugin and theme for WordPress. You can use any ads publisher or selected URL shortener services to monetize your website.

Demo: https://codecanyon.net/item/all-in-one-video-downloader-youtube-and-more/22599418