Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
Video DownloadHelper - Browser extension to download videos from the Web
SaveFrom.net - Free Online service to Download YouTube videos at one click! The best YouTube Downloader supporting fast and easy vimeo, Facebook and Dailymotion video Download and much more!
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Instadp.org - View anyone's Instadp for free in full size. Instagram profile picture viewer lets you zoom any Insta dp in original size, even private profiles. A great tool to either view an Instagram profile picture full size and HD, download it.
wDownloader - wDownloader allows you to download videos from Facebook, Instagram, Downloadgram, Twitter and other videos site.