About | FAQ | Backlog
Open Source projects, categorized.
add filters by typing...
...or clicking
.net ajax ant api application atom authentication automation blog browser bsd build c c# c++ chat client cms code coding collaboration communication communications community component console cross-platform cryptography css database development distributed django download dynamic eclipse email extension file-sharing filesystem firefox flash flex forum framework freebsd ftp fun game gamedev games gaming git gnome gnu groovy gtk gtk+ gtk2 gui haskell html http i18n im instant-messaging internet-relay-chat j2ee jabber java javascript json kde kernel library linux logging lua mac macosx mac-os-x map media messaging mobile module mono mozilla mp3 multi-platform music mysql network networking objective-c object-oriented online oop osx p2p perl php php5 plugin portable posix postgresql programming python qt qt4 rpg rss ruby scm script scripting search security server shell source sql sqlite statistics subversion swing sysadmin system technology template test testing tools unix utilities utility version-control video voip web wiki win32 windows wordpress workflow www x11 xml xmpp
[1131 users on Ohloh]
Pidgin is an instant messaging program for Windows, Linux, BSD, and other Unixes. You can talk to your friends using AIM, ICQ, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, QQ, Lotus Sametime, SILC, SIMPLE, and Zephyr.

Pidgin can log in to multiple accounts on multiple IM networks simultaneously. This means that you can be chatting with friends on AIM, talking to a friend on Yahoo Messenger, and sitting in an IRC channel all at the same time.

[330 users on Ohloh]
The most used console irc client
[250 users on Ohloh]
X-Chat is a fully-featured graphical IRC client using the GTK toolkit. It can be compiled to use GNOME and Perl scripting.
Kopete IM Client (KDE)
[226 users on Ohloh]
Kopete is a flexible and extendable multiple protocol instant messaging system designed as a plugin-based system. All protocols are plugins and allow modular installation, configuration, and usage without the main application knowing anything about the plugin being loaded. The goal of Kopete is to provide users with a standard and easy to use interface between all of their instant messaging systems, but at the same time also providing developers with the ease of writing plugins to support a new ...
[144 users on Ohloh]
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. By adhering to Mac OS X interface conventions, Colloquy has the look and feel of a quality Mac application.
[121 users on Ohloh]
Tags: kde irc chat
Konversation is a user-friendly IRC client for the KDE Desktop environment.
[86 users on Ohloh]
Miranda is the next generation Miranda IM client for Windows.
[76 users on Ohloh]
CIA is a system for tracking open-source projects in real-time over the Web or IRC. Developers can see the latest changes to their code immediately, users can subscribe to see the latest bugfixes in their favorite programs.
[54 users on Ohloh]
Tags: irc lisp sbcl xml-rpc
Lisppaste is a pastebot / pastebin / nopaste service with syntax highlighting, XML-RPC support, annotations, and more. It provides 172 channels on the Freenode IRC network with a place to share logs, code snippets, example solutions, patches, and more, and it doesn't erase history over time.
[49 users on Ohloh]
The BuildBot is a system to automate the compile/test cycle required by most software projects to validate code changes. By automatically rebuilding and testing the tree each time something has changed, build problems are pinpointed quickly, before other developers are inconvenienced by the failure. The guilty developer can be identified and harassed without human intervention. By running the builds on a variety of platforms, developers who do not have the facilities to test their changes everyw...
[46 users on Ohloh]
SeaMonkey is all-in-one internet application suite. It consist of web-browser, e-mail and newsgroup client, IRC client and HTML editor.
[36 users on Ohloh]
A chat network to IRC gateway. Currently supports Jabber, MSN, OSCAR (AIM/ICQ) and Yahoo protocols.
[35 users on Ohloh]
ChatZilla is a clean and easy to use Internet relay chat (IRC) client built on the Mozilla platform which provides all the usual features: multiple servers, a built-in list of standard networks, easy searching and sorting of available channels, logging, and DCC chat and file transfers, plus easy customization with JavaScript plug-ins and CSS styling.
[28 users on Ohloh]
XChat-GNOME is a new frontend to the popular X-Chat IRC client which is designed with the user interface foremost in mind. Historically, the OSS desktop has been steadily improving in usability, accessibility, and general slickness, yet the world of IRC clients has not kept up.

GNOME’s philosophy in terms of user interfaces has been progressing towards presenting the user with few options and sane defaults.

The authors decided that the GTK+ frontend provided excessive customizability...

[24 users on Ohloh]
InspIRCd is a modular C++ IRC Daemon (ircd) for Linux, BSD and Windows systems created to provide a stable, modern, lightweight irc server from scratch and provide a vast number of features in a modularised form using an advanced module API. By keeping the functionality of the main core to a minimum we hope to increase the stability and speed of our project and make it customisable to the needs of many users. InspIRCd is designed primarily to be a custom irc server for the chatspike irc network ...
[20 users on Ohloh]
Lambdabot is an IRC bot written over several years by those on the #haskell IRC channel. It also operates in an offline mode as a Haskell development tool, and embedded as an extension to ghci.
[19 users on Ohloh]
KVIrc is a free portable IRC client based on the excellent Qt GUI toolkit. KVIrc is being written by Szymon Stefanek and the KVIrc Development Team with the contribution of many IRC addicted developers around the world.
Eclipse Communication Framework
[17 users on Ohloh]
ECF is a framework for building communications functions into Eclipse-based tools and applications. It can be used to create other plugins, tools, or full applications that require asynchronous point-to-point or publish-and-subscribe messaging.

ECF is also a small set of applications for real-time developer communication, including instant messaging, file sharing, and real-time collaboration.

Quassel IRC
[16 users on Ohloh]
Quassel IRC is a modern, cross-platform, distributed IRC client, meaning that one (or multiple) client(s) can attach to and detach from a central core -- much like the popular combination of screen and a text-based IRC client such as WeeChat, but graphical.
[15 users on Ohloh]
Supybot is a cross-platform IRC bot written in Python, known to run anywhere Python runs, which includes all *nices, and Windows.

1. Supybot is actively developed.
2. Supybot offers nested commands.
3. Supybot has a powerful and flexible capability system for handling security.
4. Supybot includes many plugins , and has many more ripe for the picking on this very website.
5. Supybot supports multiple servers.