• 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.
  • HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.
    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • Xfce
    • MacPorts
    • XQuartz


  • Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing in one application. Itis built on the open source Mozilla Gecko engine, the same code which underlies Thunderbird and is the base for the Firefox browser.
  • Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins.
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    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • BSD
    • Cygwin
  • Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols.

    Discontinued

    Empathy is currently unmaintained. Last version, 3.25, released in August 2017, can be still downloaded from the official website.

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    • Free • Open Source
    • Linux
    • BSD
  • 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...
    • Windows
  • Miranda New Generation is a successor of a popular multi-protocol instant messaging client for Windows -...
  • Quassel IRC is a modern, cross-platform, distributed IRC client based on the Qt4 framework.
    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • Self-Hosted
  • 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. .

    Discontinued

    The program is no longer updated.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

    • Free • Open Source
    • Windows
    • Linux
  • Textual is the world's most popular application for interacting with Internet Relay Chat (IRC) chatrooms on macOS.
  • A hand-crafted IRC client that you can enjoy. Designed to be used easily and freely.
    • Free • Open Source
    • Online
    • Self-Hosted
    • Google Chrome
  • GoldBug is a secure Instant Messenger. You can be sure with using GoldBug (GB), that no third party can look into your chat communication.
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    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • BSD
  • Polari is an Internet Relay Chat (IRC) client designed for GNOME 3.
    • Free • Open Source
    • Linux
    • GNOME
  • Glowing Bear is a sleek, modern web frontend that securely connects to a running instance of WeeChat using its built-in relay protocol.
    • Free • Open Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • Android Tablet
    • Self-Hosted
    • Google Chrome
    • WeeChat
    • Firefox OS
    • Google Play Store
    • Firefox
  • znc is an IRC proxy. It runs as a daemon and connects to IRC server, then allows you to connect from a workstation and work as the user that is logged in to the IRC server.
    • Free • Open Source
    • Mac
    • Linux