FrostWire - Easy to use BitTorrent Client and YouTube Downloader in one, with built-in search and music library.
4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
µTorrent - Looking for a torrent site to download movies, music and more? Choose from top torrent sites like The Pirate Bay, RARBG, 1337X, and dozens more. (October 2019)
Video DownloadHelper - Browser extension to download videos from the Web
Deluge - Deluge is a full-featured BitTorrent client for Linux, Unix and Windows.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.