The main aim of this project is to develop a web application (internet/intranet) to improve the quality of java code using coding conventions, Junit and EMMA tool. This application allows users to upload their java code in our site for code quality improvement. On receiving code from users, we use three techniques to improve the code. They are coding conventions, generating test cases using Junit, code coverage using EMMA tool. Coding conventions will improve code readability understandability and maintainability. Junit test cases are used to improve efficiency of program code by identifying the defects in the code. Finally EMMA tool shows our efficient code statistics. EMMA is used for measuring and reporting java code coverage. This enables developers to quickly identify the portions of Java code that aren’t covered by their unit tests. The coverage statistics measures the quality of our code and shows improved code report. Hence, the result shows that our code is efficient than normal code. After quality improvement, the improved code will be delivered to the corresponding users.