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The qBittorrent project aims to provide a Free Software alternative to µtorrent. Additionally, qBittorrent runs and provides the same features on all major operating systems. The user interface is similar to the µTorrent, one of the official BitTorrent client.

This helps ease the transition between µTorrent to qBittorrent for Windows users switching to Linux. qBittorrent is a multi-platform Bittorrent client developed in C++/Qt4 by Christophe Dumez.

Its main features are its integrated search engine. It allows searching for torrent from the main torrent Web sites simultaneously in a transparent fashion.

qBittorrent supports l’UPnP/NAT-PMP, Bittorrent protocol encryption (Azureus-compatible), Peer Exchange (PeX) compatible with µTorrent, IP filtering (eMule-like “ipfilter.dat” or PeerGuardian filters), Torrents (and the files they contain).

qBittorrent is based on Qt toolkit and libtorrent-rasterbar. Moreover, it supports the remote control through a secure Web User Interface.

qBittorrent Features:

  • Polished µTorrent-like User Interface
  • 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/BitComet URIs, …
  • 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 ~41 languages (Unicode support)
  • Torrent creation tool
  • Advanced RSS support with download filters (inc. regex)
  • Bandwidth scheduler
  • IP Filtering (eMule and PeerGuardian compatible)
  • IPv6 compliant
  • Sequential downloading (aka “Download in order”)
  • Available on most platforms: Linux, Mac OS X, Windows, OS/2, FreeBSD

Changes in qBittorrent (2022-05-25):

  • Translations were broken with v4.4.3 and now are fixed.

Changes in qBittorrent 4.4.3 (2022-05-23):

  • BUGFIX: Correctly handle changing of temp save path (glassez)
  • BUGFIX: Fix storage in SQLite (glassez)
  • BUGFIX: Correctly apply content layout when “Skip hash check” is enabled (glassez)
  • BUGFIX: Don’t corrupt IDs of v2 torrents (glassez)
  • BUGFIX: Reduce the number of hashing threads by default (improves hashing speed on HDDs) (summer)
  • BUGFIX: Prevent the “update dialog” from blocking input on other windows (summer)
  • BUGFIX: Add trackers in exported .torrent files (glassez)
  • BUGFIX: Fix wrong GUI behavior in “Optional IP address to bind to” setting (Chocobo1)
  • WEBUI: Fix WebUI crash due to missing tags from config (An0n)
  • WEBUI: Show correct location path (Chocobo1)
  • MACOS: Fix main window freezing after opening a files dialog (glassez)

Changes in qBittorrent 4.4.2 (2022-03-24):

  • FEATURE: Allow to limit max memory working set size (glassez)
  • BUGFIX: Fix UI crash when torrent is in a non-existent category (Kevin Cox)
  • BUGFIX: Correctly handle changing of global save paths (glassez)
  • BUGFIX: Disable performance alert (Chocobo1)
  • BUGFIX: Prevent loading resume data with inconsistent ID (glassez)
  • BUGFIX: Properly handle metadata download for an existing torrent (glassez)
  • BUGFIX: Prevent crash when open torrent destination folder (glassez)
  • WINDOWS: NSIS: Update Spanish, Spanish International and French translations(Juanjo Jiménez, RqndomHax)

Changes in qBittorrent 4.4.1 (2022-02-16):

  • FEATURE: Restore all torrent settings to the torrent’s main context menu (thalieht)
  • FEATURE: Add confirmation for enabling Auto TMM from context menu (thalieht)
  • FEATURE: Add tooltip to Automatic Torrent Management context menu action (thalieht)
  • FEATURE: Add Select All/None buttons in new torrent dialog (thalieht)
  • BUGFIX: Keep “torrent info” alive while generate .torrent file (glassez)
  • BUGFIX: Correctly handle Auto TMM in Torrent Files Watcher (glassez)
  • BUGFIX: Correctly track the root folder name change (glassez)
  • BUGFIX: Various fixes to the moving torrent code (glassez)
  • BUGFIX: Update the torrent’s download path field when changing category (thalieht)
  • BUGFIX: Correctly handle received metadata (glassez)
  • BUGFIX: Store hybrid torrents using legacy filenames (glassez)
  • BUGFIX: Open correct directory when clicked on Browse button (glassez)
  • BUGFIX: Fix crash when shutting down and clicing on system tray icon (Chocobo1)
  • BUGFIX: Fix “Free space on disk” in new torrent dialog (thalieht)
  • BUGFIX: Optimize completed files handling (Prince Gupta)
  • BUGFIX: Migrate proxy settings (sledgehammer999)
  • BUGFIX: Try to recover missing categories (glassez)
  • WEBUI: WebAPI: fix wrong key used for categories (Chocobo1)
  • WEBUI: Remove hack for outdated IE 6 browser (Chocobo1)
  • RSS: Correctly handle XML parsing errors (glassez)

Changes in qBittorrent 4.4.0 (2022-01-06):

  • FEATURE: Support for v2 torrents along with libtorrent 2.0.x support (glassez, Chocobo1)
  • FEATURE: Support for Qt6 (glassez)
  • FEATURE: Expose libtorrent hashing_threads settings (Anton Bershanskiy)
  • FEATURE: Add “Notification timeout” option (kevtechxx)
  • FEATURE: Add connection_speed to advanced settings (Chocobo1)
  • FEATURE: Announce to all trackers if IP changed (#15001) (zhuangzi926)
  • FEATURE: Add tooltip for various columns (Chocobo1)
  • FEATURE: Add context menu to toggle content tab columns (#15164) (AbeniMatteo)
  • FEATURE: Add filter “Checking” to side panel (#15166) (AbeniMatteo)
  • FEATURE: Add “Forced metadata downloading” state (#15185) (AbeniMatteo)
  • FEATURE: Remember last viewed page in Options dialog (#15230) (Chocobo1)
  • FEATURE: Add tooltip to listening port spinbox (Chocobo1)
  • FEATURE: Add “Skip hash check” option for watched folders (glassez)
  • FEATURE: Add “Show torrent options” double-click action (glassez)
  • FEATURE: Allow setting temp folder per torrent/catergory (glassez)
  • FEATURE: Support folder based UI Themes (Prince Gupta)
  • BUGFIX: Save “resume data” once file priority is changed (glassez)
  • BUGFIX: Show priority menu at top level if there is no other in Add New Torrent dialog (FozzeY)
  • BUGFIX: Capitalize “peer flags” descriptions (Chocobo1)
  • BUGFIX: Reorder peer flags (Chocobo1)
  • BUGFIX: Show “last activity” value under all circumstances (Chocobo1)
  • BUGFIX: Elide text from the right for all columns’ header (smigii)
  • BUGFIX: Fix startup with different profiles (jagannatharjun)
  • BUGFIX: Move a few torrent context menu actions into “Torrent options” dialog (thalieht)
  • BUGFIX: Allow deselecting radio buttons in “Torrent options” for mixed torrents (thalieht)
  • BUGFIX: Apply file priority changes correctly (a-sum-duma, Chocobo1)
  • BUGFIX: Use proper string for Korean language (OctopusET)
  • BUGFIX: Disable “add peers” menu items instead of hiding it (Chocobo1)
  • BUGFIX: Disable system tray icon menu when app is exiting (Chocobo1)
  • BUGFIX: Show GUI lock icon after system tray icon is initialized (Chocobo1)
  • BUGFIX: Apply selected layout to displayed torrent content in “Add New Torrent” dialog (glassez)
  • WEBUI: Add reverse proxy source IP resolution (#15047) (HiFiPhile)
  • WEBUI: Support navigating UI tables with arrow keys (Thomas Piccirello)
  • WEBUI: Support expanding/collapsing UI folders with arrow keys (Thomas Piccirello)
  • WEBUI: Support sorting UI tables via touch (#15205) (Tom Piccirello)
  • WEBUI: Add pieces progress bar to General tab (Jesse Smick)
  • WEBUI: Update authors page (Chocobo1)
  • WEBUI: Set icon sizes attribute (Daniel Aleksandersen)
  • WEBUI: Add meta application name (Daniel Aleksandersen)
  • WEBUI: Sort WebUI language selection values (Chocobo1)
  • WEBUI: Use correct URL scheme in user prompt when HTTPS is enabled (Chocobo1)
  • RSS: Stick Unread row to top in RSS feed list (Prince Gupta)
  • RSS: Correctly use fallback icons for RSS feed in GUI (jagannatharjun)
  • SEARCH: Add context menu for tabs in search widget (#14926) (Anton)
  • SEARCH: Add more download options to torrent search result right-click menu (a-sum-duma)
  • WINDOWS: Add windows-clang support (#15115) (Biswapriyo Nath)
  • WINDOWS: Update python installer URL for Windows (xavier2k6)
  • WINDOWS: NSIS: Update Simplified Chinese translation (Losiki)
  • LINUX: Prolong wait time for shutdown for qbittorrent-nox (Chocobo1)
  • LINUX: Install vector program icon (Chocobo1)
  • LINUX: Add detection for OpenBSD, Haiku in configure script (Chocobo1)
  • MACOS: Update Mac icons for Big Sur (17jiangz1)
  • EXPERIMENTAL: Setting to store/load fastresume/torrent files in an SQLite database (glassez)
  • OTHER: Many internal code refactorings and bug fixing by many people

Changes in qBittorrent 4.3.9 (October 31, 2021):

  • BUGFIX: Fix “no action” option on torrent double click (Jose M. Abuin)
  • BUGFIX: Fix broken behavior of “priority by shown file order” (Chocobo1)
  • WEBUI: Fix WebUI crash when tracker URL is invalid (Chocobo1)
  • WEBUI: Revert “WebUI: group trackers by hostname” (Chocobo1)
  • WINDOWS: Remove Windows Vista support from manifest (xavier2k6)
  • WINDOWS: NSIS: Update Korean, Indonesian and Traditional Chinese translation (JungHee Lee, Faisal Al-Munawar Fathur Rahman, SiderealArt)

Homepage –

Supported Operating Systems:

  • Windows Windows 7, 8, 8.1, 10, 11.
  • macOS Sierra, High Sierra, Mojave, Catalina, Big Sur, Monterey