Knygathin
Grimscribe
Lots of websites now pretend to offer this service, but when you visit them, they waylay you to other pages and try to force offers on you.
... the Global Internet is changing, falling more and more into the hands of a totalitarian capitalist dominator ever more sly at enslaving us.
One small thing that supports this assumption is that all of the different "youtube free online download" pages are designed in the same way, with the same rhetorics, false promises and waylaying. I bet that at the end of the line they are all owned by the same banker.