Java Flight Recorder captures detailed information about an application's activity, but the raw files require tools to explore them effectively. Jeffrey is an open-source JFR analyzer that creates interactive visualizations from JFR events. Jeffrey Microscope is a standalone version of Jeffrey, allowing users to import recordings and view them in a browser. To get started with Jeffrey Microscope, users can download the latest microscope.jar file from GitHub and run it with Java 25 or newer. Alternatively, users can use Docker to run Jeffrey Microscope without setup by using the petrbouda/microscope image. A sample recordings image, petrbouda/microscope-examples, is also available for users to explore the tool before profiling their own application. The article will focus on using Jeffrey Microscope to analyze JFR flamegraphs and understand where an application spends its time. Flamegraphs are a key feature of Jeffrey Microscope, providing a visual representation of an application's activity. By analyzing flamegraphs, users can identify performance bottlenecks and optimize their application's performance. Overall, Jeffrey Microscope is a useful tool for developers looking to gain insights into their application's behavior and improve its performance.