Free Open Source Bittorrent Client Software

QBittorrent is a free, lightweight, multi-platform, efficient, easy-using application developed by Christophe Dumez which is designed for searching and downloading torrents. It has a ĀµTorrent-like UI, low cpu and memory usage, no popups and banners.

Free and Open Source Bittorrent Client Software for Windows/Mac/Linux


  • Integrated with torrent search engine.
  • Built-in torrent creator .
  • Bandwidth scheduler and speed limiting( upload and download respectively ).
  • Allows to minimize to system notification area.
  • Multiple styles selectable: Windows XP, Motif, CDE, Plastique, Cleanlooks, etc.
  • Unicode support.
  • DHT, PeX, Encryption, LSD, UPnP, NAT-PMP.
  • UPnP / NAT-PMP port forwarding support.
  • Supports IP filtering.
  • Supports IPv6.
  • Portable version available.
  • Highly customizable, allows to specify disk write cache size, maximum number of half-open connections, port used for incoming connections, etc.
  • Advanced control over torrent trackers.

QBittorrent works on Windows 7, Windows XP, Mac OS X and Linux, FreeBSD, OS/2.

QBittorrent is a 7.4MB download available from SourceForge.

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