Yet another YouTube downloader? Most downloaders do not give the best quality as they choose the wrong streams and re-encode them.

This downloader allows you to get either the MP4 or VP9 videos, and the AAC or Opus audios, without re-encoding to preserve the best quality. While VP9 is 35% more efficient than MP4 for videos, some videos have 40-60% smaller file sizes in VP9 format! It will automatically select the best-quality video based on file sizes. It can even combine MP4 videos with Opus audios in a MKV file, although not all players will support it. I haven't seen any other downloader that can produce a MKV file with the best video and audio without re-encoding anything.

Supports Windows (Win 7 SP1 or later), Linux (all distros) and MacOS (10.15 or later)

Installation instructions
https://github.com/mysteryx93/HanumanInstituteApps/wiki/Yang-YouTube-Downloader

From Etienne Charland aka Hanuman, by a lightworker in his free time.
https://www.spiritualselftransformation.com/