Software maintenance is one of the main phase in software evaluation. This paper presents the relation between software metrics and maintainability. This paper explains about the concept of Software code readability and its relation to software quality. The quality of code is very essential for the future and for the reuse purpose. Here generated a code readability model to calculate the readability of the code by selecting the snippets and these snippets are to be given to the expert to rate them. Collecting the features of code and combing the judgments generated the readability model. This paper focus on providing the graphical user interface (GUI),to the code readability model to improve the understanding of software code readability. By providing the readability of code to the many open source projects, automatically informing the existed code quality to improve the quality of code. It show that this readability model developed is correlates strongly with three measures of software quality: code changes in software, defect log messages and automated defect reports. It measures correlations over many releases of selected projects.