: For Android users who prefer an app over a website, tools like 9xconvert provide offline media processing including trimming and compressing.
YouTube age gates certain videos (music videos with explicit lyrics, political content). 9Convert cannot bypass login walls. Log into YouTube in your browser. Copy the URL. Paste it into a private/incognito window's 9Convert tab. The temporary session allows the parser to authenticate. youtube video downloader 9convert best