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.
GenYTB - Search and Download YouTube videos
KeepVid - A free web application that allows you to download videos
ShareTube - Watch YouTube, synced with friends.
SaveFrom.Biz - Convert YouTube video URL to MP4 file and download it to your device. SafeFrom is the best YouTube video downloader and converter.
Ytmdl - A simple app to get songs from YouTube in mp3 format with artist name, album name etc from iTunes, Gaana etc.