Hello,

what are converters for YOUTUBE video to MP3 AUDIO with best output audio quality?

I found these sites that convert youtube URL into downloadable mp3:

https://vubey.yt 320 kbps (probably no quality raise, just size increase)
http://2conv.com/ 192kbps
http://www.flvto.biz/ 192kbps
(when i downloaded original video was 96kbps)

Check also https://www.videoder.net