Linux BitTorrent clients

BitThief
BitThief is a Java-based BitTorrent client designed to download from, but not upload to, BitTorrent networks.

BitTorrent (software)
BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc. used for uploading and downloading files via the BitTorrent protocol.

BitTyrant
BitTyrant is a BitTorrent client modified from the Java-based Azureus 2.5 code base.

Deluge (Bittorrent software)
Deluge is a free software cross-platform BitTorrent client written with Python and GTK+.

Deluge (software)
Deluge is a free software cross-platform BitTorrent client graphical user interface written with Python and GTK+.

FrostWire
FrostWire is a free, open source BitTorrent client first released in September 2004, as a fork of LimeWire.

Gnome BitTorrent
GNOME BitTorrent (sometimes called simply GnomeTorrent) is a BitTorrent client included in recent versions of the GNOME desktop environment.

KTorrent
KTorrent is a BitTorrent client written in C++ for KDE using the Qt user interface toolkit.

OneSwarm
OneSwarm is a privacy-preserving P2P client developed at the University of Washington.

Opera (web browser)
Opera is a web browser and Internet suite developed by Opera Software with over 200 million users worldwide.

qBittorrent
qBittorrent is a free software cross-platform BitTorrent client GUI written with Qt4.

rTorrent
rTorrent is a text-based ncurses BitTorrent client written in C++, based on the libTorrent libraries for Unix, whose author's goal is “a focus on high performance and good code”.

TopBT
TopBT (originally called Top-BT), is a topology-aware BitTorrent client implemented with open-source Vuze code base Version 4.0.0.4.

Transmission (BitTorrent client)
Transmission is a BitTorrent client which features a simple interface on top of a cross-platform back-end.

Vuze
Vuze is a BitTorrent client used to transfer files via the BitTorrent protocol.