BeeBEEP is an open source, peer to peer, LAN messenger. Talk and share files with all the people inside your local area network.

You don't need a server, just download, unzip and start it. It is simple to use, runs quickly and security is one of its top priorities.

BeeBEEP Features:

Free: It is free and always will be.
Multiple OS: there are releases for Windows, MacOSX, Linux, OS/2 and eComStation.
Easy to use: It is a serverless application. Download, unzip and start.
Secure: encryption based on Rjandell Algorithm (AES).
Instant Messaging: chat with all people connected, group or single user.
Groups: create your favorite group of people.
P2P: send or share your files and folders (also by drag and drop).
Offline messages: messages will be delivered to offline users when they will be online.
Message History: all messages can be saved in BeeBEEP.