Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
vGet Extension - Downloads videos embedded in websites or casts them to your Smart TV.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Video Downloader Proff - Save video from popular websites and run it later
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
FDOWN.net - Download Facebook videos and save them without using Java or installing software.