Using the application is as simple as copying the address of the video you want and pasting it into the program's interface. You can also download entire playlists from YouTube, or even user channels, with just one click.
When it comes to saving the videos, you have various options. You can save the videos as MP4, MKV, or 3GP files, and audio as MP3, M4A, or OGG files.
4K Video Downloader is a a downloading tool that is quite complete and easy to use, letting you download dozens of high definition videos from YouTube to your hard drive in a matter of minutes.