Alternatives to Sim-IM for all platforms with any license

  • Thunderbird icon

    Thunderbird

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

    Open Source Mac Windows Linux BSD Haiku

  • 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

  • Facebook Messenger icon

    Facebook Messenger

    Facebook Messenger is a faster way to message. Reach friends right on their phones, get and send messages fast, message everyone at...

    Free Windows Web / Cloud Android iPhone Blackberry Android Tablet ... iPad Apple Watch Android Wear

  • 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

  • Imo icon

    Imo

    Message and video chat with your friends and family for free. Features - Make high-quality video and voice calls on Android and...

    Free Windows Android iPhone Android Tablet iPad

  • 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

  • ICQ icon

    ICQ

    ICQ is one of the oldest instant messengers. First developed by the Israeli company Mirabilis, sold to AOL, sold again and currenly...

    Free Mac Windows Linux Web / Cloud Windows Mobile Android ... iPhone Java Mobile S60 Blackberry Android Tablet Windows Phone iPad Kindle Fire

  • Franz icon

    Franz

    Franz is a free messaging app / former Emperor of Austria and combines chat & messaging services into one application. Franz...

    Free Mac Windows Linux

  • Digsby icon

    Digsby Discontinued

    Digsby is a multiprotocol IM client that lets you chat with all your friends on AIM, MSN, Yahoo, ICQ, Google Talk, and Jabber with one...

    Open Source Windows

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  • Yahoo! Messenger icon

    Yahoo! Messenger

    Stay in touch with your friends and family while sharing favorite photos using one of the most popular instant messaging applications

    Free Web / Cloud Android iPhone Blackberry

  • 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

  • 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

  • Instantbird icon

    Instantbird Discontinued

    Instantbird is an instant messaging client based on Mozilla XULRunner and the open source library libpurple created by the software...

    Open Source Mac Windows Linux

  • Spark icon

    Spark

    Spark is an Open Source, cross-platform IM client optimized for businesses and organizations. It features built-in support for group...

    Open Source Mac Windows Linux Self-Hosted

  • Kopete icon

    Kopete

    Kopete is an instant messenger supporting AIM, ICQ, MSN, Yahoo, Jabber, IRC, Gadu-Gadu, Novell GroupWise Messenger, and more. It is...

    Open Source Mac Linux BSD

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  • 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

  • Bleep icon

    Bleep

    Private instant messaging via secure, distributed technology. Download & Go Enjoy the benefits of having an account without...

    Free Mac Windows Android iPhone Android Tablet iPad

  • Yoono icon

    Yoono Discontinued

    Yoono is an easy to use application that allows you to connect to all your social networks and instant messaging services - in one...

    Free Mac Windows Linux Chrome Firefox

  • Finch icon

    Finch

    Finch is a console-based IM program that lets you sign on to AIM, Jabber, MSN, IRC, Yahoo!, and other IM networks. It runs on Unixes....

    Open Source Linux Xfce

  • 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

  • Coccinella icon

    Coccinella

    Coccinella is a free and open-source cross-platform instant messaging client with a built-in whiteboard for improved collaboration...

    Open Source Mac Windows Linux BSD

  • Tencent QQ icon

    Tencent QQ

    Tencent QQ, generally referred to as QQ, is the most popular free instant messaging computer program in Mainland China, and has over...

    Free Mac Windows Android iPhone Android Tablet Windows Phone ... iPad Facebook

  • MetroIRC icon

    MetroIRC

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

    Open Source Windows

  • 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

  • Pinger icon

    Pinger

    Pinger lets you text and talk free with the people you care about most, anywhere on the planet. Tap a picture and you'll see all...

    Free Personal Mac Windows Web / Cloud Android iPhone

  • 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

  • Kadu icon

    Kadu

    Kadu is an open source Jabber/XMPP and Gadu-Gadu instant messenger client for Linux, *BSD, Mac and Windows.

    Open Source Mac Windows Linux BSD

  • centerim icon

    centerim

    Centerim is an command line interface chat client for the common protocols like icq, msn, aim, jabber, ...

    Open Source Mac Linux BSD

  • AIM icon

    AIM

    AOL Instant Messenger is an instant messaging and presence computer program which uses the proprietary OSCAR instant messaging...

    Freemium Mac Windows Web / Cloud Windows Mobile Android iPhone ... Blackberry Windows RT iPad

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