ArmCord is a custom client designed to enhance your Discord experience
Instant messaging platform
Android Chat SDK ➜ Stream Chat API. UI component libraries for chat
Upload files via DDP or HTTP to Meteor server FS
An unofficial .Net wrapper for the Discord API
YAF.NET - C# ASP.NET Forum
The best open source survey and forms system.
Matrix reference homeserver
Telegram UserBot, Built in Python Using Telethon lib
WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.
A free and reliable P2P BitTorrent client
Anti-Spam SMTP Proxy Server implements multiple spam filters
A universal instant messaging (IM) program
Hewlett-Packard's Linux imaging and printing software
Weak signal ham radio communication
Issabel PBX - Unified Communications
Ham Radio Digital Modem Application
You can message and share files inside your intranet without a server.
A free course management system (CMS) to create online learning sites
SMTP email proxy and relay server
Psi+ Project — development branch of Psi XMPP client
Search, Download, Play, Share on Bittorrent and the cloud
Install ham radio software on your favorite flavor of Ubuntu Linux