Three steps, whatever link type you have. The only part that changes between link types is where you copy the link from.
Find your video, Short, clip, replay, or track, and copy its link. Each type hides the button in a different place: how to copy a YouTube link covers the app, desktop, Shorts, and embeds.
Open ClipConverter, paste the link into the converter, and press Convert. The tool detects the link type automatically; you do not need to tell it what you pasted.
Click Download and the MP3 saves to your device. On phones it usually lands in Downloads; check your device's files app if you cannot find it.
Something failed? Troubleshooting. Some links never work: why.