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
A universal instant messaging (IM) program
Simply explore your Android phone!
An extremely powerful and configurable BitTorrent client
Document Management System and Content Management System
Powerful Open Source Email Marketing app with analytics & segmentation
A multi-protocol & multi-source, cross platform download utility
Real time satellite tracking and orbit prediction
A free peer-to-peer (P2P) BitTorrent file sharing client
Low-latency, high quality voice chat for gamers
Standalone chat system developed in php, mysql and javascript
Cross-platform player and audio manager
Open Source Learning Management System
RSS Owl is a powerful application to organize, search and read feeds.
Formerly AjaXplorer, file sharing platform for the enterprise
Simple, web-based address & phone book
A multi-protocol instant messaging app for Mac OS X