KTorrent is a BitTorrent client written in C++ for KDE using the Qt user interface toolkit. It is maintained in the KDE Extragear.
-Upload and download speed capping / throttling & scheduling -Internet searching with torrent search engines using KHTML part. -Support for UDP trackers. -IP address blocklist plugin -Port forwarding with UPnP (Universal Plug and Play) -Protocol encryption -DHT (mainline version), and support for trackerless torrents -µTorrent peer exchange (PEX) support -File Prioritization -Ability to import partially-downloaded files -Directory scanner to automatically watch directories for new torrents -Manual addition of trackers to torrents -RSS feed support -Web interface plugin with default port number 8080 -IPv6 support -SOCKS v4 and v5 support