Apps for all platforms with any license

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Show 32 less popular platforms
  • 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 all at once.

     

    Free Open Source Mac Windows Linux BSD PortableApps.com Xfce

  • Slack

    Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

     

    Slack icon

    Freemium Mac Windows Linux Web Android iPhone Chrome OS Windows S ... BSD Electron / Atom Shell Software as a Service (SaaS)

  • Tox

    Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.

     

    Tox icon

    Free Open Source Mac Windows Linux Android iPhone Android Tablet BSD

  • 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 GPL and developed by the Adium team.

     

    Adium icon

    Free Open Source Mac

  • Trillian

    Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized between all of them! We think conversation should be easily shared between all of your devices, not trapped as...

     

    Trillian icon

    Freemium Mac Windows Linux Web Android iPhone Blackberry iPad

  • Imo

    Message and video chat with your friends and family for free.

     

    Imo icon

    Free Windows Android iPhone Android Tablet iPad

  • HexChat

    HexChat is an IRC client based on XChat for Linux , but unlike XChat it’s completely free for both Windows and Unix-like systems.

     

    HexChat icon

    Free Open Source Mac Windows Linux BSD PortableApps.com Xfce MacPorts XQuartz

  • Meebo

    Meebo is integrated, all-in-one instant messaging (IM client) that connects you with your friends everywhere.

     

    Meebo icon

    Free Mac Windows Linux Web Android iPhone Blackberry

    • Discontinued Meebo was acquired by Google on June 4, 2012.
  • Unison

    Unison is for business: a fast messenger and group collaboration tool that lets teams work much more quickly together, especially across different locations and time zones. It syncs instantly across your smartphone, tablet, or computer.

     

    Unison icon

    Freemium Windows Web Android iPhone Chrome OS Android Tablet iPad

    • Discontinued Unison was closed to focus on a new team chat app, FreshTeam.
  • Matrix.org

    Matrix is an open standard for decentralized persistent communication over IP. It can be used for decentralised group chat, WebRTC signaling, IoT-data transfer, and generally to link together fragmented silos of communication.

     

    Matrix.org icon

    Free Open Source Mac Windows Linux Web Android iPhone Android Tablet iPad ... Self-Hosted WebRTC Python JavaScript Go (Programming Language) Java Perl

  • IM+

    Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Google Talk, AIM, Jabber, ICQ, Facebook, MySpace and Twitter on ALL popular mobile platforms.

     

    IM+ icon

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

  • Rambox

    Free, open source and cross platform messaging and emailing app that combines common web applications into one.

     

    Rambox icon

    Freemium $ $ $ Open Source Mac Windows Linux

  • tawk.to

    tawk.to is a live chat app that lets you monitor and chat with visitors on your website or from a customizable page.

     

    tawk.to icon

    Freemium $ $ $ Mac Windows Linux Web Android iPhone Chrome OS Internet Explorer ... Chrome Safari Wordpress

  • ICQ

    ICQ is one of the oldest instant messengers. First developed by the Israeli company Mirabilis, sold to AOL, sold again and currenly owned by the Russian "mail.ru" group (known for one of the largest social networks).

     

    ICQ icon

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

  • ChatSecure

    ChatSecure is a free and open source messaging app that features OTR encryption over XMPP.

     

    ChatSecure icon

    Free Open Source iPhone iPad

  • Threema

    Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages.

     

    Threema icon

    Commercial Android iPhone Android Tablet Windows Phone iPad Android Wear

  • 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 to run. It is released under the GNU General Public License.

     

    Gajim icon

    Free Open Source Mac Windows Linux BSD Xfce

  • FireChat

    Chat "off-the-grid" with people around you – even if there is no Internet connection or mobile phone coverage.

     

    FireChat icon

    Free Android iPhone Android Tablet iPad

  • Snapchat

    Snapchat is the fastest way to share a moment with friends. You control how long your friends can view your message – simply set the timer up to ten seconds and send.

     

    Snapchat icon

    Free Personal Android iPhone

  • Xabber

    Open source Jabber (XMPP) client with multi-account support, clean and simple interface. Being both free (as in freedom!) and ad-free, Xabber is designed to be the best Jabber client for Android .

     

    Xabber icon

    Free Open Source Web Android

  • Jitsi Meet

    Jitsi Meet lets you stay in touch with all your teams, be they family, friends, or colleagues. Instant video conferences, efficiently adapting to your scale.

     

    Jitsi Meet icon

    Free Open Source Web Android iPhone Android Tablet iPad

  • Colloquy

    Traditionally, chat clients on the Mac have been anything but glamorous. Colloquy is an advanced IRC, SILC & ICB client which aims to fill this void.

     

    Colloquy icon

    Free Open Source Mac

  • WeeChat

    WeeChat is a fast, light and extensible chat client. It runs on many platforms (including Linux, BSD and Mac OS).

     

    WeeChat icon

    Free Open Source Mac Linux Android BSD Xfce

  • Wickr

    Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender control.

     

    Wickr icon

    Free Mac Windows Linux Android iPhone Android Tablet iPad