Open Source Objective C Communications Software

The ZEG (Zero Effort Groupware) edition of SOGo is intended to provide a complete out-of-the-box testing environment of SOGo, the Open Source messaging and calendaring software.

ChatSecure is a free and open source messaging app that features OMEMO encryption and OTR encryption over XMPP. You can connect to your existing Google accounts or create new accounts on public XMPP servers (including via Tor), or even connect to your own server for extra security. Unlike other apps that keep you stuck in their walled garden, ChatSecure is fully interoperable with other clients that support OMEMO or OTR and XMPP, such as Conversations (Android), CoyIM (Desktop), and more. ChatSecure only uses well-known open-source cryptographic libraries to keep your conversations private. Other apps may make claims about "military grade" security but, without publicly auditable source code and verifiable end-to-end encryption, you cannot be truly safe.

Harbour MiniGUI Extended Edition. HARBOUR MINIGUI SOURCE WITH HMGS-IDE (IDE VISUAL TO MAKE WIN32 APLICATIONS WITH HARBOUR) UNNOFICIAL BUILD WITH EXTENDED NEW FEATURES.

Adium is an Open Source, multi-protocol instant messaging application for Mac OS X. Adium supports AIM, ICQ, Jabber, MSN, Yahoo!, Google Talk, Bonjour, Gadu-Gadu, Novell Groupwise, SIP/SIMPLE (Text), and Lotus Sametime. Additionally, it supports all of these applications at once so, even if you have multiple IM accounts, you don't have to log into each account separately.

Vine Server(OSXvnc) is a robust, full-featured VNC server for MacOS X. It allows VNC clients to remotely view or control the machine. It is provided by TestPlant, for use with Vine Viewer AND Eggplant for cross-platform testing,

MailTrackerBlocker is a macOS Mail plugin that prevents email tracking pixels from collecting user data. It enhances privacy by blocking hidden tracking mechanisms used by marketing emails.

X-Chat Aqua is X-Chat with an Aqua interface for MacOS X. X-Chat Aqua uses the irc engine from X-Chat, and is designed to look and feel like the GTK+ front end.

Project Libre is an open platform for chat bots, virtual agents, live chat, and more. It includes web and mobile services for Java, Android, iOS, and JavaScript. Project Libre includes an API, SDK, and user interface for live chat, chatrooms, forums, chat bots, virtual agents, and other services supported by the Bot Libre and Paphus servers. The hosted servers include: BOT libre! - http://www.botlibre.com - free chat bot creation and hosting platform FORUMs libre! - http://www.forumslibre.com - free embeddable forums LIVE CHAT libre! - http://www.livechatlibre.com - free live chat and chatrooms Paphus Live Chat - http://www.paphuslivechat.com - commercial live chat, chatroom, forums, and chat bot hosting service Also hosted on GitHub, https://github.com/paphus/Project-Libre

LimeChat is an IRC client written on RubyCocoa.

OpenAG is the first Unix/Linux/Mac OS X implementation of the (unofficial) Audiogalaxy File Sharing Protocol. OpenAG includes both client and server projects. The client is available as a command line application or with a Mac OS X Aqua interface.

The goal of this project is to create a GnuPG front end for Mac OS X. To that extent, it will make installing GnuPG on OS X easier and provide inter application services to access GPG. Also, GPGME wrapper in ObjC will be done.

A port of DC++ to Mac OS X with a user interface according to the Apple Human Interface Guidelines. Because this client is built on DC++ it is compatible with the Windows version and the Macintosh version will benefit from future updates of DC++.

FMenu is a menu extra providing customizable Growl notifications about various Facebook events, a menu to easily access common Facebook pages, and a count of your messages, pokes, events, friend requests, wall posts, and photo comments.

BitRocket is a Native BitTorrent client for Mac OS X. At the heart of it's core resides the powerful libtorrent BitTorrent library. BitRocket is aimed to be a good alternative to other Mac OS X BitTorrent clients.

This project develops video conferencing and VoIP applications for Mac OS X. XMeeting is based on the work of the OpenH323 project which provides the libraries for H.323 and SIP support.

tnefDD is a OS X program that extracts attachments from TNEF formatted files (e.g., winmail.dat files), which can't directly be read by either Apple Mail or Microsoft Entourage. tnefDD features drag-and-drop operation for ease of use.

EchoMac: A Program for MacOS X to connect to the Echolink Amateur Radio network

Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently Fire handles AOL Instant Messenger®, ICQ®, MSN® Messenger, Jabber, limited IRC, Yahoo!®, and Apple Bonjour communications.

Application sharing software that allows individual windows to be replicated to other computers. Remote collaboration tool based on a modified VNC protocol. Its advantage is to keep some things, like email, private, while sharing other desktop apps.

This is a Morse Code trainer for Macintosh OSX. It features variable sending speed and spacing along with various noise sources.

GApp is for anyone that lives in GMail and/or uses GMail labels for Getting Things Done (GTD). GApp is focused on running the Google Apps on the Mac OS X desktop, allowing you to skin the GMail interface, and provides a searchable GTD view of your Inbox.

MChat is easy to use IRC app for the #macintosh channel on freenode.net. It is a easy to use single server and single channel irc program. MChat was designed to be a extremely simple program for beginners to learn how to use IRCl

Mac OSX nntp newsreader written in cocoa. Made a new start with aim to combine a binary reader and news reader in one app. Last binary for 10.7+ is a pre alpha snapshot. Don't expect anything working here!!!!

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ALX3000 is the "NeXT generation newsreader" for Mac OS X. Build from scratch using Cocoa it is fast and works well with all system services. The core of the application was developed by the authors of the popular Alexandra newreader for NeXTSTEP.