Browse free open source Messaging platforms and projects below. Use the toggles on the left to filter open source Messaging platforms by OS, license, language, programming language, and project status.

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  • 1
    Ayttm is an instant messenger program, supporting various protocols such as MSN, Yahoo, AIM, Jabber, and more. It is the heir of the Everybuddy project, and aims to continue improving the program and addressing its shortcomings.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    Smoke Crypto Chat Messenger for Android

    Smoke Crypto Chat Messenger for Android

    Smoke: Android Crypto Chat Messenger

    Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    PlanetaMessenger.org is a Instant Messenger with support to all well known instant messenger networks including ICQ,MSN,AIM,Yahoo! and Jabber through a powerfull plugin engine. PlanetaMessenger.org support multiples look and feels, plugins and profiles.
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 5
    This is an Instant Messenger client and server written fully in CGI with Perl. Users can register their nickname, and chat when anyone comes online. Also you can see they webcam.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    This project is created by Altex Information Systems. This is an open-source (os) peer-to-peer (p2p) application that one may use to provide safe transition of information. Our goal is to create a video conferencing software.
    Downloads: 0 This Week
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  • 7
    An Open Source Visual Basic.NET Instant Messaging System.
    Downloads: 0 This Week
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  • 8
    BNet-Messenger is a plugin for the Miranda IM - Instant Messenger that allows to use miranda while playing on Blizzard\'s Battle.net network. It also allows to use Battle.net friend list system from within Miranda.
    Downloads: 0 This Week
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  • 9
    BIV is an simple instant messenger for linux systems. It contains a server and a client using a special protocol.
    Downloads: 0 This Week
    Last Update:
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  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
    Learn More
  • 10
    The B.I.M. package consists of a Web message board and an integrated instant messenger. Due to the fact that both systems are tightly integrated it is possible to send messages to the web forum from the instant messenger and vice versa.
    Downloads: 0 This Week
    Last Update:
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  • 11
    CalLite CRM

    CalLite CRM

    Software per Call Center

    CalLite è il software per Call Center più versatile e veloce sul mercato. Ti permette di azzerare le perdite di tempo degli utenti (operatori, agenti, supervisori, coordinatori, ecc. ecc.) per massimizzare i guadagni. Il software dispone delle funzionalità: PowerDialer, ProgressiveDialer, PredictiveDialer ed AutoDialer. Ovunque siano (da casa o in ufficio), i tuoi operatori potranno lavorare con una semplice connessione internet. Tu potrai, da ogni dispositivo fisso o mobile, amministrare e controllare l’attività del tuo Call Center.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    GOIM is a Jabber client with special features targeted at gamers. It is based on the eclipse rcp and will include all major jabber features in addition to displaying who in the roster is playing which game on which server and other game related features.
    Downloads: 0 This Week
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  • 13
    HardTop

    HardTop

    Make any window Always On Top!

    Windows 11/10 taskbar area application that allows toggle of any desktop window "Always On Top" state. For example keep Messenger always on top of other windows or any other application that you'd like to always have visible.
    Downloads: 0 This Week
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  • 14
    The I/N Messenger application. This is an open source instant messenger program using a mySQL backend and VB.Net frontend. We are currently in closed beta testing but will go open beta later on once major bugs are fixed. Please email if you want to test!
    Downloads: 0 This Week
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    See Project
  • 15
    IM2001 is a freeware instant messaging software for Windows. This software is under developing from a community of developers so it\'s totally freeware. This software contains two parts: the server and client; both are for Windows and are fully func
    Downloads: 0 This Week
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  • 16
    Simple instant messenger implementation (Client/Server) using wxWidgets and ACE.
    Downloads: 0 This Week
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  • 17
    This Is a IP messenger. instant messenger for internal communications. To run this project java1.6.0 or higher required. I am discontinuing here. I have hosted my code on http://code.google.com/p/ip-messenger/ and will continue there.
    Downloads: 0 This Week
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  • 18
    Instant Messenger gui made with nice Fishs. Written in python. (now only Gtk, may be later we use Qt and others). Main objetives are: be nice, fast, usable, portable, and sopport different free messengers systems/backends
    Downloads: 0 This Week
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  • 19
    This project provides a basic Java implementation of the OSCAR protocol, used by ICQ and AIM clients. Commonly used features such as messaging, status and server buddy lists are supported, making it easy for developers to use this in their own work.
    Downloads: 0 This Week
    Last Update:
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  • 20
    IIM is an Instant Messaging Solution for corporate environments where IM programs like AIM and MSN have been banned. It is not firewall aware and only works within a switched network so it is not vulnerable to external attack. Uses .Net Framework 1.1
    Downloads: 0 This Week
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  • 21
    Internet Relay Jabber (or IRJ) is a Jabber client for IRC. It's useful if you like IRC, but your friends use another IM service. It is written in Perl and uses Net::Jabber and Net::IRC. (This project is no longer under active development)
    Downloads: 0 This Week
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  • 22
    IpChat is a comprehensive network communication tool, similar to a regular instant messenger. However IpChat unlike other IM networks is completelly decentralized, requiring no pre-existing server.
    Downloads: 0 This Week
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  • 23
    JIM - Java Instant Messenger. 100% Java
    Downloads: 0 This Week
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  • 24
    JXTA Instant Messenger (J.I.M) is a project that aims to establish a server free, pure P2P Instant Messaging system. It is based on Java, JXTA (www.jxta.org) and the Java Cryptography Extension JCE and provides a nice Swing based GUI.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    An instant messenger for phpNuke web portal systems.
    Downloads: 0 This Week
    Last Update:
    See Project
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