This project describes the design and the implementation of a conference support system. By using this system, an author can submit her paper; the program committee members can download and to review these papers; and finally the program chair can make a decision for their papers, all on-line. This project is a Java based application. Most of functions of this project are developed by using Java servlet technology. Through the Java servlet, a client can communicate with MySQL, an easily available Open Source database server. This application also uses Linux as the operating system, Apache as web server and Tomcat as servlet engine. Additional third party components are also used in this application. Finally, the major important interfaces and codes for key algorithms are presented.