Youtube-dl

https://github.com/rg3/youtube-dl/blob/master/README.md#readme

https://rg3.github.io/youtube-dl/download.html

https://github.com/rg3/youtube-dl/issues/4886#issuecomment-94792491  force mp4 highest res and best audio

example
this version is throttled by google

youtube-dl --yes-playlist -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/mp4'  'https://www.youtube.com/watch?v=CaCcOwJPytQ&list=PLX2gX-ftPVXU3oUFNATxGXY90AULiqnWT' 

try this one for higher speeds without throttling.

youtube-dl --yes-playlist -f 'bestvideo[ext=mp4]+audio[ext=m4a]/mp4'  'https://www.youtube.com/watch?v=CaCcOwJPytQ&list=PLX2gX-ftPVXU3oUFNATxGXY90AULiqnWT'

alternatives
https://framatube.org/

https://peertube.live

https://bittubers.com/explore

links
https://github.com/achalddave/vid command line tool for simple video manipulation. Create video from a sequences of images. Combine multiple videos into a single video. Download videos and trim to specified start/end times(uses youtube-dl)

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