Showing software for all platforms
Ares is a free open source file sharing program that enables users to share any digital file including images, audio, video, software, documents, etc. Supports BitTorrent protocol and Shoutcast radio stations.With Ares users can also join chat rooms or host their channel and meet new friends.
Shareaza is a peer-to-peer client for Windows that allows you to download any file found on the EDonkey2000, Gnutella, BitTorrent, and Gnutella2 (G2) P2P networks. Not only that, but Shareaza is completely FREE and won't show any annoying ads or pop-ups. It won't install any unwanted third party programs that can wreak havoc with your computer. No spyware, no registration, no "paid version". Just download and use. Simple.
Cabos is Gnutella file sharing program based on LimeWire and Acquisition. Cabos provides a simple sidebar interface, Mojito DHT support, firewall to firewall transfers, UPnP support, IP2Country support, and iTunes integration.
GNUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. A first service implemented on top of the networking layer allows anonymous censorship-resistant file sharing. Anonymity is provided by making messages originating from a peer indistinguishable from messages that the peer is routing. All peers act as routers and use link-encrypted connections with stable bandwidth utilization to communicate with each other. GNUnet uses a simple, excess-based economic model to allocate resources. Peers in GNUnet monitor each others behavior with respect to resource usage; peers that contribute to the network are rewarded with better service.
A multi-protocol filesharing client that connects to Gnutella, Ares, and its homegrown OpenFT network, which was inspired by Kazaa's FastTrack. It doesn't have UPnP support for automatic router configuration and doesn't support encryption or DHTs.