YooDownload - YooDownload is an online video downloader and video converter that is intended to answer downloading the videos from the leading video sharing sites.
GenYTB - Search and Download YouTube videos
YoutubeMultiDownloader - Just like its name YouTube Multi Downloader, it is an online website for downloading the videos of downloading without using any video download and accelerator.
SaveFrom.Biz - Convert YouTube video URL to MP4 file and download it to your device. SafeFrom is the best YouTube video downloader and converter.
2conv.ch - 2conv.ch is expert in downloading online videos to MP3/MP4 files from 1000+ websites, including YouTube, Facebook, Twitter, Dailymotion and more.
ShareTube - Watch YouTube, synced with friends.