Open Source C# Chat Software

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.

RevokeMsgPatcher is a reverse engineering patch tool for Chinese messaging apps QQ and TIM. It prevents message recall (revocation) by modifying the app’s behavior to retain recalled messages, allowing users to see messages that would otherwise be deleted. Primarily used in Windows environments, the tool is popular among users who prefer transparency in their chats.

THIS LIBRARY IS NOT UNDER ACTIVE DEVELOPMENT (sorry). AIMLBot (Program#) is a small, fast, standards-compliant yet easily customizable .NET dll implementation of an AIML (Artificial Intelligence Markup Language) based chatter bot. AIMLBot has been tested on both Microsoft's runtime environment and Mono.

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.

OfficeSIP Softphone and Messenger are two enterprise VoIP SIP clients written in C# in .NET Framework. The SIP clients make use of Microsoft UCC API SDK, ensuring the highest quality of audio and video. Compatible with Office Communications Server. See also open source, cross-platform: 1) simple messenger Brief Msg at http://briefmsg.org 2) MUVConf is a multi-user video conferencing, see demo video http://youtu.be/YrBU-Aqtvrk, download https://code.google.com/p/muvconf/downloads/list

DC# is an enhanced DirectConnect client written in C# for .NET platforms. Planned features include improved interface and searching capabilities, idle-triggered upload bursts, multi-source downloads, and auto search for alternates.

Thresher is a .Net IRC client library designed to serve as the basis for IRC bots and GUI clients. It is written in C# but can be used by any .Net supported language. Thesher also works with Mono on Linux.

Mario Maker Bot for Twitch collects Super Mario Maker level codes automatically from Twitch chat. It is a helpful tool for streamers who want to play Mario Maker levels made by viewers. Streamer can ask bot to pick one random level from the levels it has collected during the stream. Bot keeps log of levels it has collected and which it has randomly selected. Commands: ---------------- !level = If posted by streamer/master this command tells bot to pick one random level and removes it from the level list. !current = Bot shows which level was picked during last “raffle”.

Aplikacja na OnetCzat, [Wymagane jest posiadanie netFramework 4.0 Client Profile] Minimalne wymagania: - Windows XP sp 3 + netFramework 4.0

FXS ChatRooM is a FTP public chatroom. Easy to use. Made on Visual Basic .NET and obsfuscated with CodeWall 2010. Visit www.todoinformaticawindows.com

GGCsLib - Small and easy to use library for Gadu-Gadu IM, written in C# under .NET (mono).

IuX - Internet Updater is a RSS 0.91 reader. It's written in C# and you can apply skin. It keep you update about your favorites sites with news, icons and sound.

A set of libraries to access the Jabber platform in .Net. This project has been moved to Google Code: http://code.google.com/p/jabber-net/

Der KND Decoder konvertiert die lästigen Zahlenwerte, in den Java Dateien vom Knuddels Applet, zu lesbaren Strings. Die neue dekodier Methode wurde auch beachtet, die den HuffmanString etc. konvertiert.

MYrc is an IRC GUI client (similar and probably (more like definately) based on Mirc, hence the name) written in C# made possible with the Thresher IRC Library. It had a Plugin Architecture allowing to easily write plugin in C#.

MyAIM is a project to create an alternative AIM instant messenger client, based on the .NET Framework.

Share Your Files with Mac, Linux and Windows. NyFolder is a Different Kind of P2P, and Share it's now easier

A tool to search opponents on IRC for Counter-Strike 1.6 and Counter-Strike:Source.

Free open source .NET IRC bot using SmartIrc4Net IRC and Nini configuration libraries.

An IRC client reduced to the absolute minimal. Features: One window for multiple channels, Each channel can have it's own default font colour, All client control commands can be issued through the command line, Client takes up a small area on the deskto

A light-weight yet feature-rich Second Life chat client.

YTalk Cursor Freedom (YCF) is a small C# app that you can run inside of YTalk which provides an extended feature set for YTalk such as the ability to use the arrow keys.

Yammy (Yahoo Messenger Archive Decoder) allows you to decode and view not only yours but, also other stored YM conversations. You don't even need a password!

nebohodimo IM is a Jabber client for Windows Mobile devices. It's written to be stable over unreliable mobile connection and easy to use.

A C#.Net IRCd that uses the TOR network in a distributed manner, connecting any IRC client via the TOR network to other TOR-IRCd instances. IRC clients connected to the local IRCd sees other IRC Proxyed clients.