"Tribler is a research project of Delft University of Technology. Tribler was created over nine years ago as a new open source Peer-to-Peer file sharing program. During this time over one million users have installed it successfully and three generations of Ph.D. students tested their algorithms in the real world.
Tribler is the first client which continuously improves upon the aging BitTorrent protocol from 2001 and addresses its flaws. We expanded it with, amongst others, streaming from magnet links, keyword search for content, channels and reputation-management. All these features are implemented in a completely distributed manner, not relying on any centralized component. Still, Tribler manages to remain fully backwards compatible with BitTorrent."