Inspect React apps and measure Web Vitals with chrome-use's built-in react … and vitals commands.
React / Web Vitals (built-in, any React app)
chrome-use ships with first-class React introspection. Works on any
React app — Next.js, Remix, Vite+React, CRA, TanStack Start, React Native
Web, etc. The react … commands require the React DevTools hook to be
installed at launch via --enable react-devtools:
chrome-use open --enable react-devtools http://localhost:3000
chrome-use react tree # component tree
chrome-use react inspect <fiberId> # props, hooks, state, source
chrome-use react renders start # begin re-render recording
chrome-use react renders stop # print render profile
chrome-use react suspense [--only-dynamic] # Suspense boundaries + classifier
chrome-use vitals [url] # LCP/CLS/TTFB/FCP/INP + hydration
chrome-use pushstate <url> # SPA navigation (auto-detects Next router)
Without --enable react-devtools, the react … commands error. vitals
and pushstate work on any site regardless of framework.