C# Chat Software

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Browse free open source C# Chat Software and projects below. Use the toggles on the left to filter open source C# Chat Software by OS, license, language, programming language, and project status.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • 1
    Pidgin IM

    Pidgin IM

    A universal instant messaging (IM) program

    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.
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    Downloads: 4,780 This Week
    Last Update:
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  • 2
    RevokeMsgPatcher

    RevokeMsgPatcher

    A hex editor for WeChat/QQ/TIM

    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.
    Downloads: 1 This Week
    Last Update:
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  • 3
    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!
    Downloads: 9 This Week
    Last Update:
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  • 4
    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.
    Downloads: 2 This Week
    Last Update:
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  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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  • 5
    Driver support for 3D Controller Hardware. We hope to support SDL Input, DirectInput, and other major controller API's including game consoles and embedded systems.
    Downloads: 5 This Week
    Last Update:
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  • 6
    Annet
    A chatbot for "Artificial Intelligence" course at Kyiv-Mohyla Academy.
    Downloads: 1 This Week
    Last Update:
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  • 7
    TgDownloader
    Download files of the Telegram channels or groups you are a member of.
    Downloads: 1 This Week
    Last Update:
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  • 8
    ThinLisp is a practical dialect of lisp for real world applications. You develop in Common Lisp, you deploy in C. ThinLisp programs are as fast as C, by design. Used for a decade in million line systems.
    Downloads: 1 This Week
    Last Update:
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  • 9
    Tipic Inc. is proud to announce the born of the first Open Source, P2P, VoIP and Video conferencing solution for XMPP/Jabber. The target of this project is to develop a new portable set of codes using high quality libraries to add VoIP and Video to XMPP
    Downloads: 1 This Week
    Last Update:
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  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
    Learn More
  • 10
    Program for forum notifications via ICQ
    Downloads: 1 This Week
    Last Update:
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  • 11
    Hybrid Share is a User Friendly Mono C#/Gtk# Application that allow Mac, Windows and Linux Users To Share Files. The Application is extensible via Plugins, so you can Talk with connected people, check your mailbox or other things that plugins could do.
    Downloads: 1 This Week
    Last Update:
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  • 12
    Mario Maker Bot for Twitch

    Mario Maker Bot for Twitch

    Bot collects Super Mario Maker level codes automatically from chat.

    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”.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    Telegram Bot for Windows

    Telegram Bot for Windows

    Telegram Bot Windows Application

    This is a funcional application for Windows for your Telegram Bot. To create your own bot you must register new bot by BotFather bot in Telegram. BotFather will give you unique Autch code that will be used in this application.
    Downloads: 1 This Week
    Last Update:
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  • 14
    A light-weight yet feature-rich Second Life chat client.
    Downloads: 1 This Week
    Last Update:
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  • 15
    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.
    Downloads: 1 This Week
    Last Update:
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  • 16
    #aim (pronounced "shame") is a multi-protocol instant messaging client written in C#
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    .IRC (or dotIRC) is an IRC client written in C#. Its goal is to provide an easy to use IRC client that will be eventually be compatible with Microsoft's System.Windows.Forms library under .NET and GTK# under Mono. It is using the SmartIrc4net library.
    Downloads: 0 This Week
    Last Update:
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  • 18
    This is a set of .NET class libraries, designed to use various Internet protocols in a easy-to-use OO matter. So far it contains a POP3 and an IRC (Internet Relay Chat) library.
    Downloads: 0 This Week
    Last Update:
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  • 19
    .nIRC is an IRC client written in C#. It has full support for text formatting, file sending, etc, and allows the use of IronPython scripts in order to make further customisation easier.
    Downloads: 0 This Week
    Last Update:
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  • 20
    A. R. Live Support is online chat software, developed in Asp.net(2.0) and XML. Easy to use and it facilitates 1-o-1 live communication between customers and executives. Flexible live chat software that provides the customer support with a click.
    Downloads: 0 This Week
    Last Update:
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  • 21
    A c# implementation of the achat protocol. It is a seperate library so you can add your own interface. there are also two pre-made implementations. one basic (and incomplete) GUI version and a just as useful console version
    Downloads: 0 This Week
    Last Update:
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  • 22
    AIML Verbot Converter - Converts AIML files to Verbot KnowledgeBase (VKB) files. Visit http://www.verbots.com/ and http://www.alicebot.org to learn more about AIML and Verbots. Implemented in C# (.NET).
    Downloads: 0 This Week
    Last Update:
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  • 23

    AIMLBot (Program#)

    NOT UNDER ACTIVE DEVELOPMENT (sorry)

    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    This is another Age of Conan chat bot written in C#. Support for loading and unloading plugins while running through AppDomain. Uses a fairly easy way of implementing new plugins through the Abot.Plugin class. Using Vhab's VhaBot.Net library.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    JavaScript Chat based on DOM and AJAX technologies. Content refreshing without roundtrip of page.
    Downloads: 0 This Week
    Last Update:
    See Project
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