Alternatives to Spark for all platforms with any license

  • Pidgin icon

    Pidgin

    Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat networks...

    Open Source Mac Windows Linux BSD Xfce

  • Jitsi icon

    Jitsi

    Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols...

    Open Source Mac Windows Linux Web / Cloud Android BSD

  • Trillian icon

    Trillian

    Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between...

    Freemium Mac Windows Linux Web / Cloud Android iPhone ... Blackberry iPad

  • Adium icon

    Adium

    Adium is a free and open source instant messaging application for Mac OS X, written using Mac OS Xs Cocoa API, released under the GNU...

    Open Source Mac

  • Empathy icon

    Empathy

    Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell...

    Open Source Linux BSD

  • Miranda IM icon

    Miranda IM

    Miranda IM is the smaller, faster, easier instant messenger with support for multiple protocols. Designed from the ground-up to be...

    Open Source Windows

  • IM+ icon

    IM+

    Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Google Talk, AIM, Jabber, ICQ...

    Freemium Web / Cloud Windows Mobile Android iPhone Java Mobile S60 ... HP webOS Blackberry Android Tablet Windows Phone iPad Kindle Fire

  • Psi icon

    Psi

    Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open Jabber IM network (also known...

    Open Source Mac Windows Linux BSD

  • Gajim

    The goal of Gajim is to provide a full featured and easy to use Jabber client. Gajim works nicely with GNOME, but does not require it...

    Open Source Windows Linux BSD Xfce

  • Jappix icon

    Jappix

    Jappix is a fresh new open social platform which enables you to create your own cloud, wherever you want to. People must be able to...

    Open Source Web / Cloud Self-Hosted

  • KakaoTalk icon

    KakaoTalk

    KakaoTalk is a phone number based messenger service that allows users anywhere in the world to chat one-to-one or in a group for free....

    Freemium Mac Windows Android iPhone Blackberry Windows Phone ... Android Wear Kindle Fire

  • YakYak icon

    YakYak

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

    Open Source Mac Windows Linux

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  • Disa icon

    Disa

    Unified Messaging is awesome! Disa is your new messaging hub. Conversations from different services can seamlessly be joined together...

    Open Source Android Android Tablet Kindle Fire

  • 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...

    Open Source Mac Windows Linux BSD

  • MetroIRC icon

    MetroIRC

    An IRC client for the Windows desktop which follows the Metro design guidelines.

    Open Source Windows

  • Ayttm icon

    Ayttm

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

    Open Source Windows Linux BSD

  • qutIM icon

    qutIM Discontinued

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

    Open Source Mac Windows Linux S60 BSD Haiku

  • Pandion icon

    Pandion

    Pandion is an open source instant messaging client for XMPP networks. Keep in touch with friends or collaborate with colleagues...

    Open Source Windows

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  • 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 / Cloud Self-Hosted Node.JS

  • 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

  • Jabiru icon

    Jabiru Discontinued

    Jabber client for Android.

    Free Android

  • KouChat icon

    KouChat

    KouChat is a simple serverless chat client for local area networks (wifi). With KouChat you can communicate with other KouChat users...

    Open Source Mac Windows Linux Android Android Tablet

  • QIP Infium icon

    QIP Infium Warning

    QIP Infium is a multiprotocol instant messaging client. It supports ICQ (OSCAR), Jabber (XMPP), Mail.ru Agnet (MRA), IRC, XIMSS, SIP...

    Free Windows iPhone S60

  • shMessenger icon

    shMessenger Discontinued

    ShMessenger Mobile is a free instant messaging client for mobile phones, which supports YMSG (Yahoo!), MSN and GTalk protocols. In...

    Free Java Mobile

  • AQQ Instant Messanger icon

    AQQ Instant Messanger

    AQQ is a Polish (but available in English) multiprotocol instant messenger with support of: AQQ, Jabber, Gadu-Gadu, Tlen and ICQ. It...

    Free Windows

  • Sim-IM icon

    Sim-IM Discontinued

    Sim-IM, Simple Instant Messenger, is a multiple protocol instant messenger for MS Windows, GNU/Linux, FreeBSD. Sim-IM supports...

    Free Windows Linux BSD

  • OctroTalk icon

    OctroTalk

    OctroTalk is an Jabber/Gtalk client with support for GTalk (GMail) audio and Video calls. OctroTalk also supports SIP calling (through...

    Free Mac Android iPhone Android Tablet Windows Phone iPad

  • Centericq Discontinued

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

    Open Source Mac Windows Linux BSD

Spark Comments

Convenience is the key

Comment by DanMan
about Spark Jul 2011

It has some nice built-in features that come in handy if you're doing business like an easy screenshot tool that let's you select part of the screen and directly send it to your chat partner as image.

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