Open Source Java Messaging Platforms - Page 4

Riot Android is the original Android client for the Matrix network — a decentralized, secure communication protocol — that enables users to send end-to-end encrypted messages, join rooms, conduct voice and video calls, and interact across federated communities without relying on centralized servers. As the predecessor to Element X, Riot Android laid the groundwork for mobile access to Matrix while providing advanced features like threaded replies, rich media handling, room moderation, and custom notification controls. It integrates tightly with Android’s native platform capabilities, offering background sync, push notifications, and account management while keeping user cryptographic keys secure on the device for privacy. Users appreciate Riot’s ability to join public or private communities hosted across different Matrix servers, making it useful for both personal and organizational communication with interoperability at its core.

Client for Game Masters (of a RPG) to control a Game session using Y! Messenger Protocol. This allows GM to talk to the whole group, a sub-group (or individual), etc. and helps her to have a centralized GUI, while players can connect normally to Y! Msgr.

SKIM is an easy-to-use instant messenger completely written in Java. SKIM is open source and published under the GNU General Public License (GPL).

An instant messenger client written in Java. Uses the SWT (Standard Widget Toolkit) libraries to allow SWIM to run across all major platforms using their native widgets. Initial support for MSN and Google Chat protocols.

SimplissIM is a simple instant messenger for local networks where people want to chat, not tweak their software settings. Automatic presence, no server needed, no list of contact to maintain (people appear automatically), seamless file sending...

Sliver is a Server daemon and a client program that reads log files, and accept remote commands through the TOC protocol using Net::Aim and encryption. Sliver is written mostly using Perl, but this may change.

The goal of this project is to develop a network protocol (Peer Instant Messenger Protocol, PIMP) that creates a distributed, peer-to-peer network for the transmission of instant messages, along with a graphical client that will allow users to access the

Underground IM is a free Java Instant Messaging solution. Both a client and a server are available. Underground IM is open source software distributed free of charge under the terms of the GNU General Public License. *Public Server: 64.94.101.216:5632

ZIM-Pro - A P2P Instant Messenger based on Jxta Technology. Its features: Search for users by key words and location and add to contact list. Secure Messaging, Chatting, and File sharing, Invite offline users through E-mail, Message archiving, etc...

An instant messaging software realized for educational purposes.

An Instant Messaging App which utilizes the newly released facebook.com developer API (developers.facebook.com) to merge Instant Messaging with the facebook.com community experience.

Secure Java Instant Messenger. Supports asymmetric key encryption of messages. will support multiple protocols (Jabber initially) and multiple UIs.

This is a java based LAN messenger with file transfer support, chat and even a simple LAN game

Java YMSG instant messenger using the JYMSG API. Works on both Windows and Linux.

Jalk: an instant messenging system for small work groups - written in Java (--> OS independent) - clients can reside behind a firewall (incl. NAT) - encrypted comunication - participants can see the others typing and correcting (like unix talk)

LAN messenger for intranet communication.

Join mChat Team! mChat is open source instant messenger for mobile phones using Jabber, written in Java (J2ME, MIDP).

theClient is a Java based alternative to the standard MSN Messenger instant messaging software and aims to not only provide almost all of the existing capabilites of the current MSN Messenger client, but also to add a large degree of extra functionality.