µTorrent
For various reasons, uTorrent is one of the most popular free BitTorrent clients available: it's fast, lightweight, simple to use, and extremely efficient. It also has a portable version and is available for Android and Mac.
- Simple and intuitive user interface
- For a speedier setup, use this handy connection test.
- Detailed information on torrent downloads
- Small drive space and system resource footprint
- Free