4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
4K Download Online - Download music from YouTube to Android, SoundCloud to Android, Facebook to Android, Vimeo to Android, from browser to device or to desktop directly.
Video DownloadHelper - Browser extension to download videos from the Web
ImTOO Download YouTube Video - ImTOO Download YouTube Video is a free YouTube video downloader software!
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Video Downloader Professional - Video Downloader Professional (VDP) is an pretty smart and fast tool to catch videos from YouTube.