Peerflix - Streaming torrent client for Node.js
dottorrent-gui - An advanced GUI torrent file creator with batch functionality, powered by PyQt and dottorrent.
Exatorrent - Exatorrent is a platform where you can download torrent files for free easily.
Torrent File Editor - Qt based GUI tool designed to create and edit .torrent files.
aria2 - aria2 is a lightweight multi-protocol & multi-source command-line download utility. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
Android Torrent Client - Android Torrent Client. Open Source. GPLv3