Do note that the trial version says it supports up to five minutes of conversion for free. That's not the downloading part. The paid-for version of these tools converts any video to MP4, HEVC, H.264, MOV, MKV, AVI, MP3, iPhone, and Android from a wide range of specialty formats. That's where the five-minute limit exists in the trial. But if you download the trial, you can download from YouTube (and also from all of these sites, see image below), for free. The only cost is putting up with a few upsell dialogs while you do so.