In the current world software applications are becoming more important with each passing day. They are present in all walks of life and it’s difficult to imagine a world without them. It’s a part of every known industry whether it be manufacturing, healthcare, financing. They are available on all forms in personal laptops, mobiles, and tablets. However, there is another challenging task to figure out the quality of the software. There are multiple measures available in the form of software metrics. The objective of this thesis is to present an extensible software for calculating software metrics. This tool proposed is a web application which calculates metrics and statistics for the source code files provided. This tool also provides an ability to the user to extend the tool by adding a metric to the tool.