Browse free open source Chat software and projects below. Use the toggles on the left to filter open source Chat software by OS, license, language, programming language, and project status.
You can message and share files inside your intranet without a server.
A Windows client for the Direct Connect networks
A universal instant messaging (IM) program
Psi IM — Qt-based XMPP client
Psi+ Project — development branch of Psi XMPP client
A free peer-to-peer (P2P) BitTorrent file sharing client
Low-latency, high quality voice chat for gamers
The pinnacle of file-sharing and chat - an innovative DC client!
Standalone chat system developed in php, mysql and javascript
Program for filesharing using Direct Connect and ADC protocols
for Adium, Pidgin, Miranda and Telepathy IM Framework
A multi-protocol instant messaging app for Mac OS X
Fully customizable web chat created using AJAX.
A Mod of DC++ Client Based on FreeDC++.