Instant Messaging for all platforms with any license

Platforms

Show 22 less popular platforms
  • Skype

    Skype (/'ska?p/) is an instant messaging app that provides online text message and video chat services.

    Freemium Mac Windows Linux Web ... Android iPhone Blackberry Chrome OS Windows RT Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com

  • Thunderbird

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox. It supports POP (storing mail locally on your hard drive so that it can be accessed without...

    Open Source Mac Windows Linux BSD ... PortableApps.com Haiku

  • 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. It has built-in support for NSS, offering client-to-server message encryption for protocols...

    Open Source Mac Windows Linux BSD ... PortableApps.com Xfce

  • Telegram icon

    Telegram

    Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful. .

    Open Source Mac Windows Linux Web ... Android iPhone Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com FreeBSD

  • Slack icon

    Slack

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

    Freemium Mac Windows Linux Web ... Android iPhone BSD Apple Watch Electron / Atom Shell

  • 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 GPL and developed by the Adium team. Based on the libpurple protocol library, Adium can connect you to...

    Open Source Mac

  • Asana icon

    Asana

    Asana is the easiest way for teams to track their work so they can get results. It’s free to use, simple to get started, and powerful enough to run your entire business.

    Freemium Web Android iPhone

  • Tox icon

    Tox

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

    Open Source Mac Windows Linux Android ... iPhone Android Tablet BSD

  • Trillian icon

    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...

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

  • Signal icon

    Signal

    TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or...

    Open Source Mac Windows Linux Android ... iPhone Chrome

  • Jitsi icon

    Jitsi

    Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!, GTalk/Hangouts extensions, as well as OTR, ZRTP...

    Open Source Mac Windows Linux Web ... Android 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 resource efficient while still providing a rich feature set, Miranda includes support for AIM, Jabber, ICQ...

    Open Source Windows PortableApps.com

  • Digsby icon

    Digsby

    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 simple to manage buddy list. Its also a social networking tool that alerts you of events like new...

    Open Source Windows

    • Discontinued The application is not developed actively anymore. The source code has been made open for the community to take over but that didn't make any impact: https://github.com/ifwe/digsby | https://web.archive.org/web/20121205002331/http://blog.digsby.com/archives/1969/
  • 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 iPhone - Send unlimited messages and make free video and voice calls over your 2G, 3G, 4G or Wi-Fi...

    Free Windows Android iPhone Android Tablet ... iPad

  • Empathy icon

    Empathy

    Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your chatting within one application. Empathy...

    Open Source Linux BSD

  • Glip icon

    Glip

    Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your conversations are, so you always know what your team is doing and what needs to get done next. Video chat...

    Freemium Mac Windows Web Android ... iPhone Android Tablet iPad

  • Meebo icon

    Meebo

    Meebo is integrated, all-in-one instant messaging (IM client) that connects you with your friends everywhere. It supports a large number of popular servicesand connects you to MSN, Yahoo, AOL/AIM, MySpace, Facebook, Google Talk, and many...

    Free Mac Windows Linux Web ... Android iPhone Blackberry

    • Discontinued Meebo was acquired by Google on June 4, 2012.
  • Windows Live Messenger icon

    Windows Live Messenger

    With Live Messenger you can chat online instantly in real time with friends, family and colleagues. Its faster than e-mail, more discreet than a phone call.

    Free Mac Windows Web iPhone

    • Discontinued Messenger has moved to http://alternativeto.net/software/skype and is no longer available since April 2013.
  • Nimbuzz icon

    Nimbuzz

    Nimbuzz offers limited availablility free calls and limited availability free text messaging for users via 3G and WiFi. Calls to other Nimbuzz users are free. PAY to call mobile or landline phones for as little as $0.02/minute in bulk...

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

  • Unison icon

    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....

    Freemium Windows Web Android iPhone ... Chrome OS Android Tablet iPad

    • Discontinued Unison was closed to focus on a new team chat app, FreshTeam.
  • 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, Facebook, MySpace and Twitter on ALL popular mobile platforms. The widest selection of unique features that...

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

  • Hall icon

    Hall

    Real-time chat & texting for business teams. Free on Mac, Windows, Web, Android, and iPhone ** Why Business Teams Love Using Hall ** Group & Private Chat Easily message one-on-one or in groups with users in- or...

    Freemium Mac Windows Linux Web ... Android iPhone iPad

    • Discontinued Hall has been acquired by Atlassian, and the product will cease of exist in favour of HipChat.
  • Wire icon

    Wire

    Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end encrypted. Wire works on Android, iOS...

    Open Source Mac Windows Linux Web ... Android iPhone Chrome OS Android Tablet iPad Microsoft Edge Chrome Opera Brave Firefox

  • Minds icon

    Minds

    We are a free and open-source platform to launch your digital brand, social network and mobile app. We are also a social network ourselves. It is a global social network of social networks. Available in either decentralized or centralized...

    Open Source Web Android iPhone

  • LINE icon

    LINE

    LINE is a Japanese proprietary application for instant messaging on smartphones and PCs. Line users exchange text messages, graphics, video and audio media, make free VoIP calls, and hold free audio or video conferences.

    Freemium Mac Windows Web Android ... iPhone Blackberry Android Tablet Windows Phone iPad Apple Watch