The qBittorrent project aims to provide a Free Software alternative to µTorrent. Additionally, qBittorrent runs and provides the same features on all major platforms (Linux, Mac OS X, Windows, OS/2, FreeBSD).
Transmission has the features you expect in a BitTorrent client: encryption, a web-based interface, peer exchange, UPnP and NAT-PMP port forwarding, web seed support, watch directories, tracker editing, global and per-torrent speed limits, and more.
Deluge is a full-featured BitTorrent client for Linux, Unix and Windows. It is written in python, uses libtorrent (rasterbar) at its core and GTK for the main user interface along with web and console interfaces for advanced client/server...
FDM accelerates downloads by splitting files into sections and then downloading them simultaneously.
RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and .
Tixati is a peer-to-peer file sharing program that uses the popular BitTorrent protocol. This protocol allows many peers to form a cooperative swarm and download very large files with great efficiency.
PicoTorrent is a tiny BitTorrent client for Windows with low memory usage, high performance and a native user interface. No ads, carefully selected features, and a native user interface integrating seamlessly with your desktop.
BiglyBT is a feature filled, open source, bittorrent client based on the Azureus open source project, now Vuze .
BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc. used for uploading and downloading files via the BitTorrent protocol. BitTorrent was the first client written for the protocol.Bundleware
Like uTorrent, installs other applications. See https://www.virustotal.com/gui/file/6133c9233d45f8db8cfb4daf5af84abb3bacae89601939b6ffcf02921d85bebe/detection
Vuze (formerly Azureus) is a free BitTorrent client used to transfer files via the BitTorrent protocol. Vuze is written in Java, and uses the Azureus Engine. In addition to bittorrenting, Vuze allows users to view, publish and share original DVD and HD quality video content.Bundleware
Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/Discontinued
Vuze that hasn’t been updated since 2017.https://fossbytes.com/best-torrent-client-windows-free-torrent-downloaders/