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  1. Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat networks all at once. It has built-in support for NSS, offering client-to-server message encryption for protocols that support it.

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    Pidgin chat window
  2. HexChat icon
    • FreeOpen Source
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • Xfce
    • MacPorts
    • XQuartz

    HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.

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  3. Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as text messages on your phone.

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  4. mIRC is a popular Internet Relay Chat client used by millions of people, and thousands of organizations, to communicate, share, play and work with each other on IRC networks around the world.

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    Main Window
  5. KVIrc is a free portable IRC client based on the excellent Qt GUI toolkit. KVirc is being written by Szymon Stefanek and the KVIrc Development Team with the contribution of many IRC addicted developers around the world.

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    Screenshot
  6. Quassel IRC is a modern, cross-platform, distributed IRC client based on the Qt4 framework.

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  7. AdiIRC icon
    • FreeProprietary
    • Windows
    • Wine

    c#/csharp IRC CLient. AdiIRC stores all its settings in text files, this way you can grab the adiirc folder and put in on a usb device or external harddrive. Take all your settings and servers with you everywhere!

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    Default theme 1.9.0
  8. An alternative to Reddit and Voat. It has the original Voat culture of open expression. Most users on the site are interested in web development but mostly only chat about that in IRC.

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  9. XChat is an IRC chat program for both Linux and Windows. It allows you to join multiple IRC channels (chat rooms) at the same time, talk publicly, private one-on-one conversations etc. Even file transfers are possible.

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    Discontinued

    The program is no longer updated. Last version, 2.8.8, released in May 2010, can be still downloaded from the official website.

    Main UI
  10. WeeChat is a free chat client, fast and light, designed for many operating systems. It is highly customizable and extensible with scripts.

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  11. Kiwi IRC icon

    A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely. More friendly than other webirc clients giving the general public an easy option to connect to any IRC network.

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  12. Instantbird is an instant messaging client based on Mozilla XULRunner and the open source library libpurple created by the software developers of Pidgin . Over 250 add-ons allow user customization of, and addition of, features.

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    Discontinued

    Site last updated 2013. Site security certificate expired April 2017.

    Overall look and feel - Windows
  13. Konversation is an IRC client which gives you speedy access to Freenode network's channels, where you will find support for most distributions.

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  14. The Lounge icon
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Windows Phone
    • iPad
    • Self-Hosted
    • Git
    • Cloudron
    • Node.JS
    • npm

    The Lounge is a web IRC client that you host on your own server. This is the official, community-managed fork of @erming's great initiative, the Shout project.

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  15. dirc icon
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Self-Hosted

    Dirc is a peer-to-peer web application which uses WebRTC to set up connections between chat participants without requiring a back-end server. The static files can be self-hosted. Other features:

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