4K Video Downloader
is a free software that makes it easy to download videos and playlists from YouTube, Facebook, Vimeo, DailyMotion, Tumblr, and other streaming video sites.
Downloading a video is simple. Just copy the link of the desired video, then once in 4K Video Downloader click on the "Paste link" button. After analyzing the link, a window appears with several options. You can choose the quality of the video (including Full HD and 4K), the format (MKV or MP4, for example), where to save it, and the file name. The software automatically takes care of the rest.
It's also possible to recover only the audio of a video, download complete YouTube playlists, and MP4, MKV, M4A, MP3, FLV, 3GP channels. You can even subscribe to YouTube channels from the software to automatically retrieve the latest videos. 4K Video Downloader can also download embedded or SRT annotations and subtitles for a single video or for an entire playlist in one click.
4K Video Downloader also has other welcome features, such as direct transfer to iTunes or 3D video management, while offering various settings for better customization.