qBittorrent 3.0.5 maximized on Ubuntu 12.04
|Developer(s)||Christophe Dumez, Ishan Arora, Stefanos Antaris, Mohamadad Dib|
|Initial release||March 2006|
|Stable release||3.1.3 (November 20, 2013[±])|
|Preview release||N/A [±]|
|Written in||C++ (Qt)|
|Operating system||BSD, Linux, Mac OS X, OS/2, Windows|
|Available in||35 languages|
qBittorrent is a free software cross-platform BitTorrent client GUI written with Qt4. The program uses libtorrent-rasterbar library for the torrent back-end (network communication) functionality. It is developed by Christophe Dumez, from the University of Technology of Belfort-Montbeliard in France. It was started in March 2006 and has been in active development ever since.
qBittorrent aims to have a small foot-print, to be powerful, intuitive and visually attractive going beyond the current functions widely provided by other applications. qBittorrent is an attempt to provide a μTorrent equivalent that is open-source and multi-platform adding a streaming-like function to let users download-and-play video files. qBittorrent is currently offering functionality comparable to more popular BitTorrent clients such as Vuze but without requiring the Java Virtual Machine. qBittorrent requires Python only for the search engine while other clients such as Deluge and BitTornado require it for the BitTorrent protocol itself.
|This section requires expansion. (June 2012)|
qBittorrent was started in March 2006 by Christophe Dumez. Its active community member Sledgehammer became the new maintainer of the project on 24th of June, 2013, though Chris is still an active member of the project.
Many features present in qBittorrent include:
- Sequential downloading, the function providing option to stream torrent contents
- Unicode support
- Availability in 35 languages
- Integrated search engine which provides an interface similar to the one in eMule
As of September 2012, downloads on Sourceforge indicate the Windows version of the application was the most popular of all platforms that qBittorrent supports. Sourceforge statistics report that 89% of downloads were for the Windows version of the software.
Active community members release fresh and special builds on the forums. This can help users to check if the bugs they encounter are already fixed, or whether the features they asked for are already implemented in the latest version.
Mac OS X version
As of August 10, 2009, qBittorrent is officially available for the Mac OS X operating system. The DMG (Apple Disk Image) packages are provided by Stefanos Antaris, who joined the project for a university assignment. Although this port of qBittorrent was released recently for this operating system, its developers are hoping users will become interested in this new client.
Ubuntu - PPA repositories
Christophe Dumez have been providing up-to-date packages via his Launchpad account (hydrog3n). These builds were based on stable source tarballs.
This changed, on the 7th of April 2013. Now there are two PPAs, and both are built daily.  Some users got stuck on older versions because of this change. In order to fix this problem, they have to remove the old repository, and add the new one via the add-apt-repository command. Each PPA repository page provides clear instructions about the change.
- qBittorrent official website
- qBittorrent Win32 Build, SourceForge.net
- qBittorrent unstable builds, SourceForge.net
- "qBittorrent", Analysis Summary (Ohloh), retrieved 2012-08-23
- "Localization of qBittorrent". qBittorrent.org. Retrieved 2012-08-23.
- "COPYING", git file (qBittorrent.org)
- News article on the forums 
- Download Statistics: All Files
|Wikimedia Commons has media related to QBittorrent.|
- Official website
- Official qBittorrent wiki
- Official qBittorrent bug tracker
- qBittorrent fingerprint / peerId