Peerflix - Streaming torrent client for Node.js
qBittorrent - Lightweight and open source torrent client that runs on all major platforms.
JSTorrent - Torrent client for Google Chrome and Chromebooks
Deluge - Deluge is a full-featured BitTorrent client for Linux, Unix and Windows.
Exatorrent - Exatorrent is a platform where you can download torrent files for free easily.
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.