[btown]

This seems to be a pretty straightforward GUI wrapper around https://github.com/Tyrrrz/YoutubeExplode and https://github.com/AydinAdn/MediaToolkit (see https://github.com/PackJC/YoutubeToMP3/blob/main/Form1.cs). Note the (admirable but non-OSI) terms of the former library if using any outputs from this software.

https://github.com/yt-dlp/yt-dlp is a well-maintained public domain alternative.

[josephcsible]

Interestingly, while the readme file mentions that crayon license, the license file itself is an unmodified MIT license. I wonder what the legal status of that is.

[Chilko]

Note the final points of their reasoning:

> Q: If I make a derivative work based on your project (e.g. use your library), would I need to also include your terms of use in my own project?

> A: No, you don't have to do that. But I won't stop you if you want to.