Amazon.com: Video and Audio Downloader software for YouTube – download your favorite YouTube videos as MP4 video or MP3 audio – lifetime license – computer program compatible with Windows 11, 10
拡張機能「 Youtube Downloader」 - Opera アドオン
YouTube to MP3 Converter Online: 10 Best Sites and Apps to Download Music from YouTube on Android Mobile, iPhone, Laptop
Free YouTube to MP3 Converter and Downloader | Wave.video