LAN Messenger is an Open Source cross-platform instant messenger that allows serverless communications over local networks. You will enjoy secure instant messaging with users within your network, all messages are fully protected by AES encryption with RSA. You can additionally send broadcast messages or send a specified user a notification. Take advantage of the easy file transfer enabling quick file exchange. It comes with multi-language support so you can set up the user interface to suit your preference.LAN Messenger also provides messaging logging so that you can quickly retrieve a past conversation when the need arises and best of all internet access is not required making it safe from external threats.