download music from youtube
you don't need to use other (often paid) programs to download music from youtube.
You just need youtube-dl, or it's a better fork, youtube-dlp (have better speed download ! )
To download mp3 you also need to install ffmpeg (and include it in $PATH )
• download mp3
yt-dlp -x --audio-format mp3 <link>
• download video with subtitles (auto-generated) :
yt-dlp --write-auto-sub --convert-subs srt --write-sub <url>
GUI
Now there is good GUI for this
Tubeconverter
There is app for android:
Seal