Measure Killer is a utility tool designed for Windows that enhances the performance of Power BI and Microsoft Fabric by cleaning and optimizing datasets. This free software significantly reduces dataset refresh times and minimizes memory and CPU usage in Premium capacity environments. It operates through an XMLA connection, allowing datasets to remain within the service while only analyzing metadata without accessing the actual data. In its latest mode, Measure Killer provides an overview of the entire tenant, highlighting reports that utilize custom visuals or report-level measures, along with detailed insights on datasets and reports, including page counts and visuals used.

The tool offers users the ability to delete unused measures automatically or generate a C# script for manual deletion through Tabular Editor. Additionally, it can create M-Code to remove unused columns, further enhancing performance by reducing RAM consumption. For each analyzed report, Measure Killer generates a comprehensive Excel file detailing the usage of various artifacts, such as measures and visuals. Users can also visualize data with charts indicating the number of used versus unused columns and measures, making it a valuable asset for Power BI users aiming for efficiency.