qBittorrent v2 is the closest open source (GNU GPL v2 license) equivalent
to utorrent. It is based on the Qt4 toolkit and libtorrent-rasterbar.
Features:
Well-integrated and extensible Search Engine
Simultaneous search in most famous BitTorrent search sites
Per-category-specific search requests (e.g. Books, Music, Movies)
All Bittorrent extensions
* DHT, Peer Exchange, Full encryption, Magnet URI
Remote control through a Web user interface
* Nearly identical to the regular UI, all in Ajax
Advanced control over trackers, peers and torrents
* Torrents queueing and prioritizing
* Torrent content selection and prioritizing
UPnP / NAT-PMP port forwarding support
Available in ~25 languages (Unicode support)
uTorrent spoofing to bypass private trackers whitelisting
Advanced RSS support with download filters (inc. regex)
IP Filtering (eMule and PeerGuardian compatible)
WWW: http://www.qbittorrent.org/
===> The following configuration options are available for qbittorrent-2.3.1:
NOTIFY=on (default) "Enable libnotify support"
===> Use 'make config' to modify these settings
Introduce the -devel version of the 2.3.x branch at rc10.
It has the following new features relative to the 2.2.x branch:
* Simplified torrent root folder renaming/truncating
(< v2.3.0 is no longer forward compatible)
* Remember previous save paths in torrent addition dialog
* Max number of half-open connections can now be edited
* Added support for strict super seeding
* The user can force listening on a particular network interface
* Added cookie support for RSS feeds
* User can force tracker reannounce
* Added "No action" setting for double-click action
* Several torrents can be moved at once
* Added error state for torrents (error is displayed in a tooltip)
* Added filter for paused/error torrents
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