HandBrake - HandBrake allows users to easily convert video files into a wide variety of different formats.
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.
Ciano - A simple multimedia file converter for elementary OS.
ImTOO Download YouTube Video - ImTOO Download YouTube Video is a free YouTube video downloader software!
Any Video Converter - Any Video Converter is an All-in-One video converting tool with easy-to-use graphical interface, fast converting speed and excellent video quality. It allows you to effortlessly convert video files between every format!
Video Downloader Professional - Video Downloader Professional (VDP) is an pretty smart and fast tool to catch videos from YouTube.