4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
YTMP3.co.com - YTMP3.co.com is a 100% free multi-format audio and video downloader that lets you convert video and audio from most social media platforms. No annoying ads.
Video DownloadHelper - Browser extension to download videos from the Web
y2mate - Y2mate.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
y2mate.tv - Y2Mate YouTube Converter is not just a video converter, but also an audio converter. You can easily convert YouTube videos to the format you want, such as MP4 (320p, 480p, 720, HD 1080p), 320kbps MP3, M4A, WEBM, etc.