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, project status, and freshness.
WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.
An easy-to-use anti-spam email gateway
A free and reliable P2P BitTorrent client
Anti-Spam SMTP Proxy Server implements multiple spam filters
A free peer-to-peer (P2P) file sharing client
Open source software for live streaming and recording
Hewlett-Packard's Linux imaging and printing software
An intranet chat application that does not require a server.
Network video device management software
Icecast and Shoutcast broadcasting client
A faster, leaner email client and fork of Nylas Mail
Travel light, run fast, just works! Devuan powered!
Sync Outlook contacts and calendars with Google
The streaming torrent app. For Mac, Windows, and Linux.
Protects you from spam mails and virus mails effectively with milter
Serial and TCP terminal for engineering and debugging
A universal P2P file sharing client for Windows
Ham Radio Digital Modem Application
A Windows client for the Direct Connect networks
Issabel PBX - Unified Communications
Fast & stable Nginx MariaDB Redis Php 8 development stack for Windows