Browse free open source Chat software and projects for Windows and Mac below. Use the toggles on the left to filter open source Chat software by OS, license, language, programming language, and project status.

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  • 1
    phpFreeChat is a free, simple to install, fast and customizable chat that uses by default files for message and nickname storage. It uses AJAX to smoothly refresh and display the chat zone and the nickname zone.
    Downloads: 55 This Week
    Last Update:
    See Project
  • 2
    aMSN

    aMSN

    MSN compatible messenger application

    A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux
    Downloads: 29 This Week
    Last Update:
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  • 3
    ssh-chat

    ssh-chat

    Chat over SSH

    ssh-chat is a custom SSH server written in Go that allows you to chat over SSH connection. When you open your terminal and type in a command, instead of getting a shell you get a chat prompt. With ssh-chat you get a simple chat room over a secure shell connection, where you can send and receive private messages, check any user's public key fingerprint for identification purposes, and more. You can change the color theme of the chat, block or kick users, and chat on just about any platform where an SSH client is available, including on mobile.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    Dolphin Pro - Social Network Platform

    Dolphin Pro - Social Network Platform

    Open-source social network CMS and mobile apps.

    Dolphin Pro is a full-featured integrated Social CMS. Dolphin includes media server, video converter, media sharing modules, social profiles, chat, messenger, timeline, events, groups, store, blogs, forums and more.
    Downloads: 7 This Week
    Last Update:
    See Project
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  • 5
    WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 6
    UNA

    UNA

    PHP & MySQL based CMS with messenger

    Full featured CMS with social features. It has limited functionality by default and can be extended with additional modules. Additional modules includes such features as Education solution, Video Messenger, Events, Polls, Tasks, Forum, Market, Videos, Video Streaming and more
    Downloads: 9 This Week
    Last Update:
    See Project
  • 7
    PySocks - a platform independent SOCKS proxy written in Python Do you share an DSL or cable connection between several computers? With PySocks you'll be able to use all features of ICQ, MIRC, Napster and such again!
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    Downloads: 16 This Week
    Last Update:
    See Project
  • 8
    A fork of WASTE 1.5.0.408 beta 3 starting form 1.5.1.412 beta 3
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    PHP Random Videochat Roulette

    PHP Random Videochat Roulette

    PHP random webcam chatroulette script.

    Random Webcam Video Chat key features: + Facebook integration (exclusive mode supported) + Filters: users choose their chat partners by gender, location + Cirrus independent (can stream using rtmp server) + Logs including text chat and webcam snapshots, log comments + Latest girls and boys (with profile links for members) + Monetization: ads inside chat (supports rotator and paid cam site feeds) Sites with similar concept and features: ChatRoulette, Omegle, ChatRT, ChatRevolve, FaceBuzz, RandomCams, t.vu (ChatRoulette mirror), FlipChat, HeyPeople , StirChat, FaceBuzz, ChatHopper, ShufflePeople, CamStumble, HeyReddit, Zupyo, TinyChat, Stickam-Shuffle, anoChat, videoEncounter, FaceRoulette, NastySpace, ZapandTalk , patchRoulette, ChatRevolve, ChatPig (German), RanChat (South Korea), VdChat (Chinese), Catpapo (Brazil), Tipitty (Spanish), CamToya (français), MoveYourCam (français), ChatClock, RudeRoulette, ManRoulette. Demo live site: http://www.videoencounter.com/
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 10
    Embeddable telnet daemon written 100% in Java.
    Downloads: 3 This Week
    Last Update:
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  • 11
    OpenRPG is an Internet application that allows people to play Role Playing Games and some miniature based war games in real-time over the Internet. OpenRPG helps facilitate character tracking, miniature battles, and adventure building.
    Downloads: 5 This Week
    Last Update:
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  • 12
    This project seeks to provide a web-interface to a BetaBrite LED sign capbable of sending messages to the sign and displaying them. Additional modules can also be added to have the sign display weather information and RSS.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    Make AJAX/PHP avatar worlds on websites. Build visualized, real multi-user communities, fora and chat rooms. See your buddies wander around. From card games to virtual RPG worlds, DutchPIPE makes it possible. The future: interconnected DutchPIPE sites.
    Downloads: 3 This Week
    Last Update:
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  • 14

    Meanwhile

    Open implementation of the Lotus Sametime protocol

    THIS PROJECT HAS MOVED Please visit https://github.com/obriencj/meanwhile The Meanwhile project is an open implementation of the Lotus Sametime client protocol. The project provides a library written in C, a python module, and a Gaim plugin utilizing the library.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    A collection of practical and useful PHP scripts which impose minimum requirements to hosting systems. Currently it contains a gallery, chat, blog and snippets collection scripts.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16
    Eggdrop
    Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.
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    Downloads: 2 This Week
    Last Update:
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  • 17
    HelloWorld is a decentralized social network based on OpenID, P2P and different JAVA encryption technologies. It will offer all the fundamental functionalities of a social network platform respecting the right of informational self-determination.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    CURE provides a web-based environment for distributed collaboration. It was designed for lerning groups but is now also used to support busines collaboration. It combines wiki ideas with mailing lists, shared folders, chats, and room metaphors.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19

    Darkbot

    The IRC's Talking Robot

    [ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Discussion Forums 2k is dead the new project can be found at: http://developer.berlios.de/projects/idb/
    Downloads: 1 This Week
    Last Update:
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  • 21
    Doblets are a framework for dynamics downloadable objects to used in interactive (chat-like) environments.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    Java library for the creation of IRC-related applications (i.e. bots, clients, etc)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    P2PIRCLIB is a library and the de facto standard interface for the P2PIRC protocol. The library itself will define the protocol and enable it to be used on many common development platforms. The P2PIRC protocol is a decentralized implentation of IRC.
    Downloads: 1 This Week
    Last Update:
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  • 24
    This is a simple, easy to install and easy to configure chat script in perl.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    SmartIRC is a PHP class/library for communication with IRC networks, which conforms to the RFC 2812 (IRC). It's an API that handles all IRC protocol messages. Project moved to PEAR! http://pear.php.net/package/Net_SmartIRC/
    Downloads: 1 This Week
    Last Update:
    See Project
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