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Original author(s)Christophe Dumez[1]
Developer(s)Sledgehammer999, Chocobo1, glassez, pmzqla and others[2]
Initial releaseMay 16, 2006; 18 years ago (2006-05-16)[3]
Stable release
4.6.5[4] Edit this on Wikidata / 26 May 2024; 4 days ago (26 May 2024)
Preview release
5.0.0beta1[5] Edit this on Wikidata / 19 March 2024; 2 months ago (19 March 2024)
Written inC++ (Qt),[6] Python
Operating systemCross-platform: FreeBSD, Linux, macOS, OS/2, Windows
PlatformARM, x86, x64
Available in≈70 languages[7]
List of languages
Default UI: English

≥ 99% translated: Basque, Catalan, Chinese (Taiwan), Czech, Danish, Dutch, Galician, German, Hebrew, Indonesian, Japanese, Korean, Lithuanian, Polish, Portuguese (Brazil), Russian, Turkish, Ukrainian

≥ 50% translated: Belarusian, Bulgarian, Chinese, Chinese (Hong Kong), Finnish, French, Greek, Hungarian, Italian, Latvian (Latvia), Malay (Malaysia), Norwegian Bokmål, Occitan (post 1500), Portuguese, Romanian, Slovak, Slovenian, Spanish, Swedish

≥ 10% translated: Croatian, Esperanto, Arabic, Armenian, English (Australia), English (United Kingdom), Georgian, Hindi (India), Icelandic, Latgalian, Uzbek (Latin), Vietnamese
TypeBitTorrent client
LicenseGPLv3+[8] with OpenSSL linking exception Edit this at Wikidata

qBittorrent is a cross-platform free and open-source BitTorrent client written in native C++. It relies on Boost, OpenSSL, zlib, Qt 6 toolkit and the libtorrent-rasterbar library (for the torrent back-end), with an optional search engine written in Python.[9][10]


QBittorent Mascot

qBittorrent was originally developed in March 2006 by Christophe Dumez,[1] from the University of Technology of Belfort-Montbéliard (UTBM).

It is currently developed by contributors worldwide and is funded through donations,[11] led by Sledgehammer999 from Greece, who became project maintainer in June 2013.[12]

Along with the 4.0.0 release a new logo for the project was unveiled.[13][14]

In February 2023, a security vulnerability affecting versions 4.5.0 and 4.5.1 was discovered in the Web UI running on Windows systems. This vulnerability enabled unauthenticated access to all files on the host computer via a path traversal bug.[15] This issue has been patched in version 4.5.2, which was released to the public on February 23, 2023.[16]


Some of the features present in qBittorrent include:


qBittorrent is cross-platform, available on many operating systems, including: FreeBSD, Linux, macOS, OS/2 (including ArcaOS and eComStation),[17] Windows.

As of July 2017, SourceForge statistics indicate that the most popular qBittorrent version of all supported platforms, 81% of downloads were for Windows computers.[18]

As of May 2020, FossHub statistics indicate qBittorrent as the second most downloaded software with over 75 million downloads.[19]

Packages for different Linux distributions are available, though most are provided through official channels via various distributions.[16]

qBittorrent Enhanced is a fork of qBittorrent intended for blocking leeching clients such as Xunlei. It is hosted on GitHub.[citation needed]


In 2012, Ghacks suggested qBittorrent as a great alternative to μTorrent, for those put off by its controversial adware and bundleware changes.[20]

See also


  1. ^ a b "Authors file". Archived from the original on 2019-02-17. Retrieved 2012-08-26.
  2. ^ "Contributors to qbittorrent/QBittorrent". GitHub. Archived from the original on 2020-06-21. Retrieved 2019-07-01.
  3. ^ "Oldest available changelog". GitHub. Archived from the original on 2019-02-17. Retrieved 2016-02-17.
  4. ^ "release-4.6.5". 26 May 2024. Retrieved 27 May 2024.
  5. ^ "release-5.0.0beta1". 19 March 2024. Retrieved 1 May 2024.
  6. ^ "qBittorrent", Analysis Summary, Ohloh, archived from the original on 2014-02-25, retrieved 2012-08-23
  7. ^ a b "Localization of qBittorrent". Archived from the original on 2013-08-14. Retrieved 2012-08-23.
  8. ^ "Copying file",, archived from the original on 2019-02-17, retrieved 2012-08-26
  9. ^ qbittorrent/qBittorrent, qBittorrent project, 2022-05-22, archived from the original on 2022-05-22, retrieved 2022-05-22
  10. ^ "qBittorrent/". GitHub. 13 August 2022. Archived from the original on 22 May 2022. Retrieved 22 May 2022. Make sure you have python installed correctly (remember the search functionality requires a working python installation).
  11. ^ "Team members",, archived from the original on 2013-08-19, retrieved 2012-09-25
  12. ^ "qBittorrent is under a new maintainer". qBittorrent official forums. Archived from the original on 2019-06-09. Retrieved 2013-06-26.
  13. ^ "Change qbittorrent logo. Issue #6467. by sledgehammer999 · Pull Request #6484 · qbittorrent/qBittorrent". GitHub. Archived from the original on 25 May 2021. Retrieved 4 October 2020.
  14. ^ "New Icon/Logo Proposal · Issue #6467 · qbittorrent/qBittorrent". GitHub. Archived from the original on 11 November 2020. Retrieved 4 October 2020.
  15. ^ "Web UI - apparent path traversal vulnerability · Issue #18618 · qbittorrent/qBittorrent". GitHub. Archived from the original on 2023-02-28. Retrieved 2023-02-28.
  16. ^ a b c "News Releases". Archived from the original on 2019-12-13. Retrieved 2023-11-13.
  17. ^ "Network / Networking / Internet applications". Archived from the original on 2020-09-18. Retrieved 2020-09-03.
  18. ^ "Download Statistics: All Files". SourceForge. Archived from the original on 2016-10-11. Retrieved 2014-03-01.
  19. ^ "FossHub Download Statistics: All Files". FossHub. Archived from the original on 2019-03-01. Retrieved 2019-02-10.
  20. ^ Brinkmann, Martin (21 February 2012). "Looking For A uTorrent Alternative? Try qBittorrent". Ghacks. Archived from the original on 10 January 2017. Retrieved 17 December 2014.