Great Downloader easy to use can convert into multiple file formats. Fast and impressive
dottorrent-gui - An advanced GUI torrent file creator with batch functionality, powered by PyQt and dottorrent.
Video DownloadHelper - Browser extension to download videos from the Web
Torrent File Editor - Qt based GUI tool designed to create and edit .torrent files.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
JSTorrent - Torrent client for Google Chrome and Chromebooks
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.