qBittorent

qBittorrent is a free, open source application based on Qt4 toolkit and libtorrent-rasterbar that runs on all major OS such as Windows®, Linux, Mac® OS X®, OS/2 or FreeBSD (including support for over 25 languages). The primary purpose of this Bittorrent client is to offer an alternative to other similar torrent managers. The main features are: - similar user interfaces with µTorrent (for a smooth transition). - integrated and customizable search: on most famous BitTorrent search sites. - support for all BitTorrent extensions: Magnet/BitComet, Peer Exchange, DHT, etc. - advanced control for trackers, peers, and torrents (torrent queueing and prioritizing). - support for UPnP / NAT-PMP port forwarding. - bandwidth scheduler and sequential download. - IP Filtering (compatible with eMule and PeerGuardian) and IPv6 compliant. - detailed torrent info: size, status, seeds, peers, download and upload speed, ratio, etc. - etc.