# Deprecated 😞 > As of React 16, react-addons-perf is not supported. Please use your browser’s profiling tools to get insight into which components re-render. For examples on how to use browsers profiler for performance testing check the [React Docs](https://reactjs.org/docs/optimizing-performance.html#profiling-components-with-the-chrome-performance-tab) # ReactPerfTool [](http://packagequality.com/#?package=react-perf-tool) [](https://travis-ci.org/RamonGebben/react-perf-tool) [](https://gitter.im/RamonGebben/react-perf-tool?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [](https://badge.fury.io/js/react-perf-tool) [](https://github.com/RamonGebben/react-perf-tool/blob/master/LICENSE) ReactPerfTool tries to give you a more visual way of debugging performance of your React application. It does this by using the addons delivered by the React team and community to get measurements and visualize this using graphs. This makes it easier to spot bottlenecks.  ## Usage ```bash npm i react-perf-tool react-addons-perf -D ``` ```javascript import ReactPerfTool from 'react-perf-tool'; import Perf from 'react-addons-perf'; // Import styles if they don't get loaded already import 'react-perf-tool/lib/styles.css'; export default function YourApp(props) { return (