YouTube is an important streaming video source for most users, but it cannot support downloading videos officially for offline use. Therefore, if you still want to download YouTube videos to your computer or mobile phone, this article will show you the best 5 ways to do it quickly. How to Download YouTube Videos on PC/MAC iTubeGo YouTube Downloader is the best video downloader and converter. You can download videos from 10000+ sites with 10x faster download speed, such as YouTube, Facebook, Instagram, etc. It is very easy to use, just choose the output format and quality you want, including MP3, MP4, AVI, M4A, and more, then you can get the converted video directly which is suitable for your player. Moreover, it also has a built-in browser which makes it easy to search for different sites, then you can download videos directly with one click. How-to Steps Step 1: Download and Install the iTubeGo YouTube Downloader to your computer, then search for the YouTube video you want to download