Similar to the original YouTube app, the YouTube Azul app operates without commercials or other interruptions. You can save ad-free videos to your computer and watch them later. Using YouTube Azul will also help you save data on your mobile device. Youtube to mp4 converter is a YouTube video to mp4 converter. YouTube videos can be converted to MP4 or any other video format, including AVI, WMV, MOV, MP4, and M4V. You may quickly convert your YouTube videos into the format you want to view on your mobile devices by using a Youtube to mp4 converter.