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 µTorrent-like UI, low cpu and memory usage, no popups and banners.

Features
- 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.
More Reading
QBittorrent is a 7.4MB download available from SourceForge.
