Dentex YouTube Downloader's interface is divided into three different tabs. In the first one you can search for any video you want to download and the program will display a list of everything related to your query in seconds. In the second tab, you can choose the format and quality of the video (720p, 480p, MP4, MP3 ...). Finally, the third tab displays a list of all the videos you've downloaded so far.
From the third tab you can also change the format of any of the videos. To do so you need to install an additional plug-in that you can download from the app itself.
Dentex YouTube Downloader is a fantastic tool to download YouTube videos, with nothing to envy any of the big names in its category, like TubeMate or SnapTube.