BiglyBT - BiglyBT is a feature filled, open source, bittorrent client. Auto migrate from Vuze and Azureus. I2P integration, Swarm Merging, Advanced Tag System, WebTorrent support, built-in VPN kill switch, Meta-search, UPnP/DLNA access, and much more.
Torrent File Editor - Qt based GUI tool designed to create and edit .torrent files.
rTorrent - rtorrent is a BitTorrent client for ncurses, using the libtorrent library.
dottorrent-gui - An advanced GUI torrent file creator with batch functionality, powered by PyQt and dottorrent.
libtorrent - libtorrent is a feature complete C++ bittorrent implementation focusing on efficiency and...
Koinonein BitTorrent Client - A fast and modern BitTorrent Client.