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).

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!

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/

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

Jimm is an ICQ clone for mobile devices, such as celluluar phones. It is written in Java 2 Micro Edition (MIDP) and uses protocol version 8. Jimm is not affiliated with or endorsed by ICQ, Inc.

BuddySpace is an enhanced Jabber client providing secure presence management, web services and instant messaging. It extends the 'buddy list' concept with enhanced and customisable visualisation of presence (incl. maps, logical layouts).

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.

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.

Simple and powerful chat client/server system for your web pages. Support channel administration, irc-like commands, connections filtering, extensive logging and much more. Works in any Java compliant web browser.

Free Instant Mesagging and Chat client / server

SMTP server, POP3 server, LDAP server, IMAP4 server, WWW administrator's interface

Modular, network based system for integrating separate multimedia systems

Jeti is a Java Jabber client that supports most chat features such as file transfer, group chat, emoticons, and formatted messages. It can be used as an application or as a Web applet.

Plugable multiprotocol instant messaging client for J2ME mainly(jabber is the only one protocol yet implemented).

ljr - Loyal Jabber Robot is just an all-purpose robot for jabber groupchats with plugin system written in Java. Planned features: remembering facts, file server, kick/ban for vulgar words, reminder, dictionary/translation.

Web discussion forum engine. Written with Jakarta Struts and JSTL. Goals: to be fast, scalable, flexible and configurable, can be easily integrated into another projects. Features: user accounts, permissions, hierarchical categories, internal "mailbox

Web gallery generator is simple tool for web developer. It prepare previews ,fotos and raw XHTML files from source foto directory. In comparison with other web gallery tools it builts only content raw xhtml files and modified fotos - no graphics faces.

Goal of this projects is to design unified general binary data format and to provide open-source libraries and tools for it.

A DirectConnect client library and GUI implemented in Java.

Mobber is a mobile communicator based on the Jabber protocol for cell phones with GPRS. It is written in java (MID Profile Version 1.0) - should work on any device that supports Java (it was tested on Siemens CX65 and phone emulators available for Linux)

Easy email client with synchronized address book, provide pop3, smtp and ldap, user friendly gui...

Feed'n Read is an open Java based newsfeed reader. It is powered by the Sun ROME syndication framework and supports RSS 0.90, 0.91, 0.92, 0.93, 0.94, 1.0, 2.0, ATOM 0.3 and 1.0). Intuitive, fast and responsive ui using eclipse technologies (JFace / SWT)