They are preconfigured and hidden so that you can focus on the code.Ĭreate a project, and you’re good to go. You don’t need to install or configure tools like webpack or Babel. When you’re ready to deploy to production, create a minified bundle with npm run build. ( npx comes with npm 5.2+ and higher, see instructions for older npm versions) If you've previously installed create-react-app globally via npm install -g create-react-app, we recommend you uninstall the package using npm uninstall -g create-react-app or yarn global remove create-react-app to ensure that npx always uses the latest version.