In this tutorial, we will learn how to run the create-react-app on a different port.
If we create a new project using create-react-app (CLI), by default the react app runs on port
npm start command.
To change the port number, first we need to install a new package called cross-env which helps to set environment variables across all platforms (like windows, mac, linux, etc).
npm install -D cross-env
Now, open your package.json file and add the following line inside the
scripts object by specifying your port number.
"start": "cross-env PORT=4006 react-scripts start",
Here I set a
PORT environment variable to
4006 using cross-env, so that my app runs on port