https://www.techradar.com/news/popular-youtube-video-downloading-site-keepvid-is-no-more

KeepVid – once a popular destination for anyone looking to download videos from YouTube, Facebook, DailyMotion and Vimeo – is no more.

The site, which used to allow users to download full videos in MP4 format or extract the audio as an MP3, is now a resource providing a list of ad-supported video platforms and subscription-based streaming services.