Chrome DevTools panel for React debugging: Timeline, Performance, Memory, Side Effects, Redux, CLS, AI analysis.

Demo using the latest React Profiler

React Profiler Tool testing workspace.

Bridge React’s Profiler API to Model Context Protocol (MCP): a local companion server + browser collector so agents answer performance questions from real render data.

Playwright-native CLI for inspecting live React apps without opening the DevTools UI.

This is the starter project for the React Profiler course in the Mastering React Series provided by WintellectNOW.