Greasy Fork is available in English.
Download YouTube videos and audios for free without external service, convert YouTube to all formats.
< Spätná väzba na iTubeGo YouTube Downloader
It's litterally explained on Greasyfork's home page. By the way, it's a 5 years old script, there are little chances it might still work.
I can't understand where i paste that script.. plz help