4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
YoutubeMultiDownloader - Just like its name YouTube Multi Downloader, it is an online website for downloading the videos of downloading without using any video download and accelerator.
yt2mp3.org - Free online YouTube to MP3 Converter
KeepVid - A free web application that allows you to download videos
DVDVideoSoft YouTube to MP3 Converter - Best YouTube to MP3 Converter of 2019. Any format, any quality, ad-free. Easy YouTube playlists downloads. Loved by users since 2006.
ShareTube - Watch YouTube, synced with friends.