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.
WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.
A free and reliable P2P BitTorrent client
A free peer-to-peer (P2P) file sharing client
An extremely powerful and configurable BitTorrent client
A universal P2P file sharing client for Windows
A Windows client for the Direct Connect networks
A universal instant messaging (IM) program
Psi+ Project — development branch of Psi XMPP client
A multi-protocol & multi-source, cross platform download utility
Qt based GUI tool designed to create and edit .torrent files
Standalone chat system developed in php, mysql and javascript
forma.lms is a Learning Management System (LMS), opensource lms
Simple, web-based address & phone book
Refined P2P Filesharing + BitTorrent
Open Source Learning Management System
Diverse P2P Filesharing