libtorrent

Even though there is no shortage of torrent clients out there, sometimes it can be difficult to choose the one that suits your needs and preferences. While some come with malware and trackers, others come with an abundance of features that a standard user rarely uses.

libtorrent is a C++ Bittorrent library designed to run on anything from embedded systems to large scale seed servers. Considering that the library is designed with efficiency and scalability in mind, it does not come as a surprise that its main goal is to put less strain on the CPU and RAM. Among the most noteworthy features, you can count IPv6, HTTP seeds, Mainline DHT as well as uTorrent's peer exchange. Developers do not have to employ all its features in their project and can easily disable them during the compile phase.

It is worth mentioning that the library has been employed in a variety of now popular torrent clients, including, but not limited to Deluge, qBittorrent, Folx, MooPolice, Free download manager, Halite, BitSlug or Bubba, just to name a few. The library is also used with various MMORPGs such as Runes of Magic and World of Tanks, whose launchers are used to update the game client.