Browse free open source Communications software and projects below. Use the toggles on the left to filter open source Communications software by OS, license, language, programming language, and project status.
A free and reliable P2P BitTorrent client
A free peer-to-peer (P2P) file sharing client
An extremely powerful and configurable BitTorrent client
You can message and share files inside your intranet without a server.
Document Management System and Content Management System
Simply explore your Android phone!
A Windows client for the Direct Connect networks
A universal instant messaging (IM) program
An intranet chat application that does not require a server.
Unified Communications Server
Psi+ Project — development branch of Psi XMPP client
A multi-protocol & multi-source, cross platform download utility
Standalone chat system developed in php, mysql and javascript
forma.lms is a Learning Management System (LMS), opensource lms
Program for filesharing using Direct Connect and ADC protocols
Simple, web-based address & phone book
Open Source Learning Management System
Fully customizable web chat created using AJAX.