TinyChat

TinyChat is a network messaging tool designed to facilitate the communication between the computers connected to the same network. The application allows you to easily send and receive text messages from your system to other IP addresses.
Any computer that is connected to a local area network can communicate with the others. Even if you are not connected to the Internet the users can send simple text messages between computers by using the NET SEND command.
However, this method limits the user experience and cannot be compared with the modern instant messaging tools. TinyChat aims to provide you with a simple interface for exchanging messages with the other computers from the network.
The main window allows you to enter the IP address of the remote computer and establish the connection. The app should be opened on both systems in order to start chatting.
The Address Book feature enables you to save multiple addresses in order to easily connect to your friends or colleagues.
When typing your messages, the app offers you the option to format the text or change the font size. Unfortunately, you need to click on the Send button after you enter your message which can be a pain for most users.
Although it allows you to send instant messages, the program includes only the basic functions and does not support advanced features such as emoticons or chat logs. However, this contributes to a small footprint and insignificant resources used during the conversation.
An useful feature is the picture sharing tool which enables you to send an image to the conversation partner by dropping it on a window. By installing QuickTime you can also share movies with the other party.
To sum up, TinyChat is an efficient messaging tool for communicating with the other computers from the LAN.