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.cc - By using our converter you can easily convert YouTube videos to mp3 (audio) or mp4 (video) files and download them for free - this service works for computers, tablets and mobile devices.
Video DownloadHelper - Browser extension to download videos from the Web
OnlineVideoConverter.com - OnlineVideoConverter.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
VidToMP3.com - VidToMP3.