How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Jeffrey Microscope for Generating Flame Graphs in Java

calendar_today July 13, 2026 person Petr Bouda domain dzone

Java Flight Recorder (JFR) captures an enormous amount of detail about what your application is doing — but raw JFR files are only as useful as the tools you have to explore them. Jeffrey is an open-source JFR analyzer that specializes in turning JFR events into interactive visualizations, and Jeffrey Microscope is its standalone, single-user deployment: a self-contained application that lets you import recordings and dig into flamegraphs, timeseries, and other views right in your browser. Getting started takes a minute: Standalone JAR – download the latest microscope.jar from the GitHub relea

open_in_new Read original post