Open Source Comms

I've found these to be useful every day. Give them a test!

  • HexChat icon


    Free Windows Linux BSD Xfce ... MacPorts XQuartz Website

    HexChat is an IRC client based on Small XChat for Linux iconXChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.
    HexChat was originally called XChat-WDK which in turn was a successor of freakschat.


    Easy to use and customizable interface
    Cross-platform on Windows, OS X, and Unix-like OSes
    Highly scriptable with Python and Perl
    Translated in multiple languages
    Fully open source and actively developed
    Multi-network with auto-connect, join, and identify
    Spellcheck, Proxies, SASL, DCC support and more


  • Mastodon icon


    Free Web Self-Hosted Website

    Mastodon is a decentralized microblogging engine, an alternative implementation of the Small Gnu Social iconGnu Social project.


    • Free and open-source.
    • Decentralized, no worries about a single company controlling your communications.
    • Fully interoperable with GNU social and any OStatus platform
    • Real-time timeline updates
    • Media attachments
    • OAuth2 and a straightforward REST API
    • Background processing for long-running tasks
    • Deployable via Docker


  • icon

    Free Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted WebRTC Python JavaScript Go (Programming Language) Java Perl Website is a growing ecosystem for open, decentralised chat, VoIP and IoT communication.

    The Matrix project defines an open baseline standard of RESTful HTTP APIs alongside open source, Apache-licensed reference implementations of servers, clients and services. It can be used to synchronise real-time data between multiple destinations, for example for IoT-style services - and of course for instant messaging, IRC-like chat rooms, and voice and video calls/conferencing.

    It is based on :

    It can be hosted on the top of
    or it can be hosted on Synapse :

    Source code :
    Instance explorer :


  • Thunderbird icon


    Free Mac Windows Linux BSD ... Haiku Website

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Small Mozilla Firefox iconMozilla Firefox.

    It supports POP (storing mail locally on your hard drive so that it can be accessed without an internet connection), and IMAP. It features excellent mail filter capabilities and management.

    Thunderbird has strong support for using multiple accounts and identities, including automated signature features.

    Chat functionality is built in, so you can enjoy real-time conversation with your contacts, right from your favorite messaging application, with multiple supported networks. Thunderbird makes it easy to search through both past conversations and received emails.

    Thunderbird can also function as an RSS/Atom feed reader, and has a large selection of add-ons that extend it with calendar support, PGP support, integration with online services and much more.

    Available also as portable app: