Note: This is all almost full YouTube ID informations. Original owner goes to AgentOak, modified version by Martin Eesmaa.
See the credits and also special thanks in below.
Last updated: 05 January 2026
Also known as itag or format codes and way back they could be specified with the fmt parameter (e.g. &fmt=22) used to be on website address bar after YouTube Video ID, (deprecated?).
Depending on the age and/or popularity of the video, not all formats will be available.