Pre-Note: This isn't supposed to be very useful or clean yet. I just wanted to organize this in my own and I'm trying to do it. :>
Note: This is all almost full YouTube ID informations. Original owner goes to AgentOak, and thanks for most updates to Martin Eesmaa and the incredible internet community. :>
See the credits and also special thanks in below.
Last updated: June 2025
Also known as itag or format codes and way back they could be specified with the fmt parameter (e.g. &fmt=22).
Depending on the age and/or popularity of the video, not all formats will be available.