Hey there,

the official React devtools have it by default:

https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi?hl=en

The only prerequisite is that you are using React ≥ 16.5. The profiler won’t show and/or work if you have an older React version.

Let me know!