Apps for all platforms with any license

  • Skype

    Skype is the most popular free voice-over IP and instant messaging service globally. It allows users to text, video and voice call over the internet.

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

  • 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.

    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. .

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

  • WhatsApp Messenger icon

    WhatsApp Messenger

    WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.

    Free Mac Windows Web Android ... iPhone S60 Blackberry Android Tablet Windows Phone Blackberry 10 Android Wear Kindle Fire

  • FreezeCrowd icon

    FreezeCrowd

    FreezeCrowd is a social network that connects people in group photos. The motto is to break the ice and connect with your friends through the photos.

    Free Web

    • Warning The site freezecrowd.com has a bad reputation on WOT. You can read the comments about spam at https://www.mywot.com/en/scorecard/freezecrowd.com
  • 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.

    Open Source Mac

  • 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.

    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.

    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.

    Free Windows Android iPhone Android Tablet ... iPad

  • Google Voice and Video Chat icon

    Google Voice and Video Chat

    With this plugin by Google, you can now use voice and video capabilities in your Gmail, iGoogle and orkut chat. It lets you have an actual conversation with someone, or even chat face to face over video.

    Free Mac Windows Linux

    • Discontinued It's now http://alternativeto.net/software/google-hangouts/
  • 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 once and more.

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

  • eM Client icon

    eM Client

    eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.

    Freemium Windows

  • HexChat icon

    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.

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

  • 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.

    Open Source Linux BSD

  • TeamSpeak icon

    TeamSpeak

    TeamSpeak is a proprietary Voice over IP software that allows users to speak on a chat channel with other users, much like a telephone conference call. A TeamSpeak user will often wear a headset with an integrated microphone.

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

  • 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.

    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.

    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.
  • 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.

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