What are some alternatives?
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
youtube-dl - A small command-line program to download videos from https://alternativeto.
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-DLG - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
Bulk Media Downloader - Grab and download media (image, audio, and video) resources by monitoring network.