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
An intranet chat application that does not require a server.
Psi+ Project — development branch of Psi XMPP client
Standalone chat system developed in php, mysql and javascript
Program for filesharing using Direct Connect and ADC protocols
Fully customizable web chat created using AJAX.
NMDC Hub Server