How to convert and download a YouTube video Just try it out! This free and fast converter allows you to watch your favorite YouTube videos offline on your PC, TV or nearly any other device. Currently supported services: YouTube (HD, 720p, 1080p, 4K), Vimeo, Facebook Video and many more. Youtube to Mp4 Converter - iLoader is a free online media conversion application, which allows you to convert and download nearly any Youtube audio or video URL to common formats.