Open Source Java Communications Software

Vuze (formerly Azureus) is an extremely powerful and configurable BitTorrent client. Search and download torrent files. Play, convert and transcode videos and music for playing on many devices such as PSP, TiVo, XBox, PS3, iTunes (iPhone, iPod, Apple TV).

OpenKM is a electronic document management system and record management system EDRMS ( DMS, RMS, CMS ). It provides modern and flexible architecture that meet today's IT demands, based on open technology (Java, Tomcat, GWT, Lucene, Hibernate, Spring and jBPM), powerful and scalable multiplatform application. OpenKM is a Web 2.0 application that works with Internet Explorer, Firefox, Safari and Opera. Can be configured in major DMBS like Oracle, PostgreSQL and MySQL among others. Due to its technological architecture design, OpenKM meets the document management needs of businesses of all sizes (from SMEs to big corporations). Thanks to its elegant and intuitive interface, OpenKM transforms complex operations into easy tasks. The most relevant functions of OpenKM is the indexing of the most common types of files: text, Office, Office 2007, OpenOffice, PDF, HTML, XML, MP3, JPEG, etc. For a complete feature list take a look at http://goo.gl/au8cQy

winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!

The open source Enterprise Content Management (ECM) software that handles any type of content, allowing users to easily share and collaborate on content.

Freenet front end written in Java. Supports multiple up/downloads, messages, searching and more.

A web based Metadata Catalog Server for data description and discovery. Supports both generic and geospatial data discovery. It implements international standards (e.g. ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software. Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development. Source code available on github https://github.com/geonetwork/

With HelloNzb you can download (binary) files from Usenet servers via NZB index files. The software is based on Java and can thus run on many platforms (tested on Windows and Linux). Automatic archive verification via PAR2, automatic RAR archive extraction, built-in yEnc- and UU-decoding. Portable, no installation required.

openCRX moved to https://github.com/opencrx

MailArchiva is a powerful, full featured email archiving (email archiver) and compliance solution for mail systems such as Microsoft Exchange. It stores all incoming, outgoing and internal emails for long term storage. A web based user interface is avail

EZ Intranet Messenger is designed to work within a LAN segment, without the presence of centralized server. Its primary goal is to provide instant messaging service, along with online status notification, file transmission, and real time public chat.

Kablink open team collaboration software uses social networking to unify team workspaces w/ real-time web conferencing. Collaboration for knowledge networking, program management, communities-of-practice, telework, other business process/functional areas

Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.

Very Quick Wiki is a Java Server Pages based WikiWikiWeb clone. It's goal is to be as lightweight but as functional as possible. It is deployed by dropping a single war file into any J2EE web container without any extra installation processes.

L2Net is .net Alternative Lineage 2 Server and Client.

Mailster is a project aimed at testing software mail capabilities. It provides a mail server container to test emails sent by your apps without rewriting your application code.

PowerFolder provides, private cloud and hybrid cloud solutions for home users, businesses, enterprises and universities, for secure on-premise sync, in-house sharing and cloud backup.

NINAN, a webapplication to download binary content from news servers. Ninan Supports the nzb file format for easy download and runs on a server or workstation on a OS supporting java 1.6+. Request and bugs can be reported at: http://ninan.org

Ace Operator is a tool for enabling live communications between company representatives and online users from web sites. By clicking on the "live help" button, customers can get access to company representatives and exchange information in real-time.

Acqlite is Gnutella file sharing program based on LimeWire, Acquisition and Cabos. It is free software, no spyware, no adware. It provides simple interface, multi languages support, and iTunes + iPod integration.

a small console based utility program for creating LDAP email entries

Ashcast is a video-chat application fully written in Java, using a Swing GUI. It offers full cam support on MS Windows, Linux and Macintosh systems, and integrates with an IRC based backend for chat.

Azureus 7(Cayenne) is a BitTorrent client, used to transfer files via the P2P protocol. Cayenne is written in Java and based on Vuze/Azureus client . Cayenne contains completely redesigned lightweight UI, speed and functionality optimizations.

Azureus Shu Mod adds features to the original Azureus Bittorrent Java Client.

A new free, GUI-based, user-friendly, fast, robust, multi-platform, Java bulk mailer program for sending mass e-mails one by one.

Chabber is an extensible XMPP-based Instant Messaging application. It is a generic, portable application that follows the standard protocols for Instant Messaging and gives users a lot of advanced functionalities. It provides a platform for plugins.