To build software, the customer is looking for a company that develops the product in record time with minimal cost and good quality. To measure the productivity and the software quality, several indicators and metrics have emerged, which have been the subject of various research fields and which are highly demanded by enterprises and software development teams. In order to assess the software quality and ensure of the quality of the product many tools have been developed and used. The work presented in this study is focused on tools measuring software quality, so we present the open source tools developed in java, then we compare it, according to some criteria defined in this study.