XFab YouTube Downloader is a powerful tool to free download YouTube videos and convert youtube flv to avi, wmv, mpeg for iPhone, iPod, PSP, etc. It makes downloading of a video really simple. You only need a few mouse clicks to download and convert the video with any of the available codecs (DivX, Xvid, MPEG4, H.264) to any possible format (AVI, MP3, MP4, MKV and others). It can download videos easily from YouTube and other websites, like Metacafe, Google Video, Yahoo Video and so on,convert HD and standard videos to popular video formats, like MP4, AVI, WMV, etc. for playback on devices, say, iPod, iPad and iPhone and so on. To use XFab YouTube Downloader is very easy, it insides a IE toolbar at YouTube Player when you open YouTube Video Page, you just click «download» button to quickly begin download YouTube videos. And you can create multi-download tasks at the same time. It support batch download TouTube Video.