qBittorrent 2 is a multi-platform Bittorrent client developed in C++/Qt4 by Christophe Dumez, a Ph.D student in the University of technology of Belfort-Montbeliard. This software is still under active development and it becomes more and more featureful, while being already very stable.

Its main features are its integrated search engine (allows searching for torrent from the main torrent Web sites simultaneously in a transparent fashion), its support for l'UPnP/NAT-PMP, Bittorrent protocol encryption (Azureus-compatible), Peer Exchange (PeX) compatible with µTorrent, IP filtering (eMule-like "ipfilter.dat" or PeerGuardian filters), Torrents (and the files they contain) prioritizing,...Read more about qBittorrent