iEasyRecorder - iEasyRecorder is a powerful Mac audio recording program which allows you to record audio, sounds and music from any applications.
Minitube - Minitube is a YouTube desktop application.
ScreenRec Streaming Video Recorder - ScreenRec is a free streaming recorder with audio that lets you capture hours of live video from any website.
FreeTube - FreeTube is an open source desktop YouTube player built with privacy in mind.
MP3myMP3 - MP3myMP3 Recorder saves any audio you hear on your computer straight to mp3 or wav.
NewPipe - NewPipe is a lightweight YouTube front-end for Android.