Open Source Server Operating Systems Chat Software

BeeBEEP is a secure (encryption based on Rijndael Algorithm, AES) peer to peer office messenger. You can talk and send files with all your colleagues inside a local area network such of an office, home or internet cafe without a server. BeeBEEP works also with VPNs. This serverless application is indispensable in all those places where privacy and security an essential requirement. For more info visit: https://www.beebeep.net

See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.

The gSOAP toolkit is an extensive suite of portable C and C++ software to develop XML Web services with powerful type-safe XML data bindings. Easy-to-use code-generator tools allow you to directly integrate XML data in C and C++. Serializes native application data in XML. Includes WSDL/XSD schema binding and auto-coding tools, stub/skeleton compiler, Web server integration with Apache module and IIS extension, high-performance XML processing with schema validation, fast MIME/MTOM streaming, SOAP and REST Web API development, WS-* protocols (WS-Security, WS-Policy, WS-ReliableMessaging, etc), XML-RPC and JSON. Licensed under GPLv2. Visit the developer center with guides, tutorials, and examples at www.genivia.com/dev.html The documentation of the toolkit, libraries, plugins and more is available at www.genivia.com/docs.html Commercial-use licenses and expert technical support services are available at competitive pricing levels, please visit www.genivia.com/products.html

A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux

libircclient is a small but powerful library, which implements client-server IRC protocol. It has all features needed to create your own IRC client or bot, including multi-threading support, sync and async interfaces, CTCP/DCC support, colors, SSL connections and so on.

Bazaar is a multifunction system that does Web Conferencing, IRC chat, link management, and sgml publication (for the ICAAP system). Bazaar uses MySQL at the back end and features customizable interfaces, API, multiple languages and a host of other f

IRCD-Hybrid is a lightweight, high-performance Internet Relay Chat server.

YSM is a simple ICQ client based on the v7/v8 icq protocol version. Free of external libraries requirements, written in the C Language.

Denora is a set of Stats Services for IRC networks that allows IRC network admins to get a complete and comprehensive overview of their IRC network. Denora exports this information to MySQL, HTML XML and flatfile databases.

A graphical notification plugin for the instant message client gaim. Now hosted at http://plugins.guifications.org/trac

Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam. It allows you to ignore IMs unless the sender is in your Buddy List, the sender is in your Allow List, or the sender correctly answers a question you have predefined.

An fserve (fileserver) for X-Chat that allows you to share files via IRC.

icqlib is the most feature complete, open source, library implementation of Mirabilis' ICQ protocol available on the Internet. icqlib currently supports approximately 90% of the ICQ UDP v5 protocol and 80% of the ICQ TCP v2 protocol.

A multiplayer RPG that connects as a psuedo server to an IRCD. Built in the tradition of old BBS Door games such as LORD (http://en.wikipedia.org/wiki/Legend_of_the_Red_Dragon). Forest fights add experience and gold needed to best your master (gain level

A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.

An IRC(u) services server framework written in C++. This server framework is capable of supporting as many individual clients as the protocol supports. Each client can be custom made by subclassing an existing fully functioning client.

VooDoo cIRCle is modular IRC bot, scriptable thanks to PHP and Perl, with built-in SSL support, File System, private BotNet and advanced security rights for each user. Runs on POSIX/Unices, Windows and Mac OS X.

Unreal is a IRCd based on the Dreamforge branch of IRCd, with the goal to provide a solution to network who want features and stability - and support. Its goal is to compete against both commercial and opensource ircds of same kind.

Xivio.com was a commercial children's virtual world website created in 2006 by Gavin Conrad. This is the legacy World Server Java Core made available to the world to do with as it wishes.

[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.

IceChat is an IRC (Internet Relay Chat) Client created in C# .Net 3.5/Mono. Website is at www.icechat.net. It is meant to work as a cross-platform friendly irc client with the Mono Framework.

The MXControl project aims to create a set of tools to extend and administrate the Chat-channels on the WinMX Peernetwork. Part of this projects are BendMX that adds features to the Chat, and a full featured Chatbot for administrative and other tasks.

Nebula: A small and lean IRC client written for motif/lesstif. Small system requirements, speed, portability, security and a clean GUI are its strong points.

OpenQ is a QQ-liked protocol plugin for Pidgin (Formerly known as Gaim). (Note: The OpenQ has been merged into Pidgin source) | OpenQ 作为 Pidgin（曾经的 Gaim）的插件，实现了类似于 QQ 的协议。（提示：OpenQ 已经导入 Pidgin）

psyBNC is an easy-to-use, multi-user, permanent IRC-Bouncer with many features. Some of its features include symmetric ciphering of talk and connections (Blowfish and IDEA) It compiles on Linux, FreeBSD, SunOs and Solaris.