Alternatives to Spark for Linux with any license

Platforms

Show 18 less popular platforms
  • Psi icon

    Psi

    Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open XMPP network. Localized versions of Psi are available in...

    Open Source Mac Windows Linux BSD

  • YakYak icon

    YakYak

    What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * ...

    Open Source Mac Windows Linux

  • Tkabber icon

    Tkabber

    Tkabber is a Free and Open Source client for the Jabber instant messaging system. Its writen in Tcl/Tk, and works on many platforms (tested on Linux, FreeBSD, NetBSD...

    Open Source Mac Windows Linux BSD

  • Ayttm icon

    Ayttm

    Ayttm is an instant messaging (aka chat) client that provides all-in-one chat functionality for several major instant messaging services from one simple program. Ayttm...

    Open Source Windows Linux BSD

  • Messenger for Desktop icon

    Messenger for Desktop

    A simple & beautiful app for Facebook Messenger. Chat without distractions on any Operating System.

    Open Source Mac Windows Linux

    • Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
  • qutIM icon

    qutIM

    qutIM - free open-source multiprotocol ( ICQ, Jabber/GTalk/Ya.Online/LiveJournal.com, Mail.Ru, IRC ) instant messenger for Windows, Linux, MacOS X, OS/2, Symbian...

    Open Source Mac Windows Linux S60 BSD ... Haiku

    • Discontinued The project seems to be no longer developed. Last versions for Windows, Mac, Linux and other platforms can be still downloaded from the official website.
  • Kaiwa icon

    Kaiwa

    Inspired by the best and built for XMPP, Kaiwa is a beautiful web-based client for the only standardized chat protocol.

    Open Source Linux Web Self-Hosted Node.JS

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  • Sim-IM icon

    Sim-IM

    Sim-IM, Simple Instant Messenger, is a multiple protocol instant messenger for MS Windows, GNU/Linux, FreeBSD. Sim-IM supports Jabber/XMPP, Google Talk, ICQ and AIM...

    Free Windows Linux BSD

    • Discontinued The project is no longer developed. Last versions for Windows and Linux date back to 2008, but they can be still downloaded from the official website.
  • KouChat icon

    KouChat

    KouChat is a simple serverless chat client for local area networks (wifi). With KouChat you can communicate with other KouChat users, without configuring a server, or...

    Open Source Mac Windows Linux Android Android Tablet

  • Centericq

    Centericq is a text mode menu- and window-driven IM interface that supports the ICQ2000, Yahoo!, AIM, IRC, MSN, Gadu-Gadu and Jabber protocols.

    Open Source Mac Windows Linux BSD

    • Discontinued The program is no longer updated. Last version, 4.21.0, released in September 2005, can be still downloaded from the official website.