As featured in:

qBittorrent is based on Qt4 toolkit and libtorrent-rasterbar. qBittorrent is developed by volunteers on their spare time. If you like this piece of software, please make a donation and help it survive. Additionally, qBittorrent runs and provides the same features on all major platforms (Linux, Mac OS X, Windows, OS/2, FreeBSD).

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 ~25 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

What's New:

It contains various qbittorrent and libtorrent networking fixes. Now most issues with VPNs and SOCKS5 proxies should be fixed.

ATTENTION WINDOWS USERS: There's a "qBittorrent" app on the Windows Store which costs money. It isn't an official release nor it is coming from us. The person publicizing it doesn't have permission to use the qBittorrent name/logo.
v4.3.0 changelog:

  • Feature: Many UI elements colors are themeable now (jagannatharjun)
  • Feature: Allow changing GUI icons from theme bundles (jagannatharjun)
  • Feature: Notify user when torrent moving finished (glassez)
  • Feature: Shortcut CTRL + I opens Statistics window (LoopsGod- Feature: Add RSS functionality in Web UI (Sepro)
  • Feature: Drop ".unwanted folder" Feature (glassez)
  • Feature: Expose libtorrent peer_turnover, max_concurrent_http_announces, no_connect_privileged_ports settings (Sophist, an0n666, NotTsunami)
  • Bugfix: Fix typo in Options dialog (Andrei Stepanov)
  • Bugfix: Remove "requires restart" from network interface settings (an0n666)
  • Bugfix: Rename "Create subfolder" to "Keep top-level folder" (thalieht)
  • Bugfix: Show tooltip for some properties in transfer list (Nick Korotysh)
  • Bugfix: Fix calculation of torrent current state (glassez)
  • Bugfix: Improve detecting completed files when adding, rechecking or moving a torrent (glassez)
  • Bugfix: Fixed broken announce logic in embedded tracker causing failures in some cases (FranciscoPombal)
  • Bugfix: Disable checkbox if torrent doesn't have root folder (thalieht)
  • Bugfix: Update country flag icons with upstream (Chocobo1)
  • Bugfix: Private torrent: If tracker entry is edited clear old peer list. Also don't allow user to manually add peers. (an0n666)
  • Bugfix: Fix large strings not visible in log widget (jagannatharjun)
  • Bugfix: Disable edit action in Peer list widget (Chocobo1)
  • Bugfix: Add a scroll area to torrent creator dialog (Ernesto Castellotti)
  • Bugfix: Content tab: Open double-clicked folder regardless on which column the click happens (Chocobo1)
  • Bugfix: "Open containing folder" on a folder now opens it in its parent folder (Chocobo1)
  • Bugfix: Fix GeoDB download in systems with non-C locales (FranciscoPombal)
  • Bugfix: Fix peer blocked message (FranciscoPombal)
  • Bugfix: Make more robust the banning of selected peers from the list (NotTsunami)
  • Bugfix: Use toned green color for downloading pieces in Pieces bar (jagannatharjun)
  • Bugfix: Correctly fill whole width of speed graph (jagannatharjun)
  • Bugfix: Fix impossible speed in speed graph (jagannatharjun)
  • WebUI: Hide additional search filters on small screens (Thomas Piccirello)
  • WebUI: Shrink search bar on small screens (Thomas Piccirello)
  • WebUI: Fix search categories only working in English (Thomas Piccirello)
  • WebUI: Add Trackers section to sidebar (Thomas Piccirello)
  • WebUI: Fix Enter button behavior in textarea (Tom Piccirello)
  • WebUI: Fix wrong file renaming selection range (MR)
  • WebUI: Preselect "Default save path" in watched folders (thalieht)
  • WebUI: Fix banning peers (brvphoenix)
  • WebUI: Fix seeding time checkbox placement (Chocobo1)
  • WebUI: Bump Web API version (Thomas Piccirello)
  • RSS: Fix renaming RSS autodownload rule (glassez)
  • RSS: Fix RSS article is not marked as "read" when torrent is downloaded (glassez)
  • Search: Update minimum Python version to 3.5.0 (ngosang)
  • Search: Make middle-click close search tabs (Will Da Silva)
  • Windows: NSIS: Update Dutch translation (Thomas De Rocker)
  • Windows: NSIS: Change the installers uninstallation question to clear confusion (an0n666)
  • Linux: Fix typo in systemd service file (Shane Allgeier)
  • Linux: Don't use HTML in tray tooltip (thalieht)
  • Linux: Don't create 'data' subdirectory in XDG_DATA_HOME (lbilli)
  • Linux/MacOS: Add HTTPS tracker certificate validation option (NotTsunami)
  • Other: Many CMake improvements (FranciscoPombal)
  • Other: Support for libtorrent 1.1.x is dropped (Chocobo1)
  • Other: Many code cleanups and improvements (FranciscoPombal, Chocobo1, glassez)