How to change ReactJS Localhost port!

How to change ReactJS Localhost port!

Written by Adam. R on Sep 28th, 2021 Views Report Post

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I have seen that the How to change Next.JS Localhost port post did very well. I have decided now to do ReactJS as it is similar to NextJS!

The Process

To change the default port of 3000 it is a bit different then doing it for NextJS. But it is still possible! Lets begin!

You must already have a react project made. But if you don't make sure you have NodeJS installed. Just type the following command in your terminal:

npx create-react-app

Make sure you do this in your project directory.

Once installed find the package.json folder.

Find the line:

 "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"

Then change the "start" line change it to the following:

"start": "set PORT=80 && react-scripts start",

Now just run the following command in your terminal:

npm run start

You may be automatically opened with localhost. But as you see there is no :3000 or any port number. Broswers remove the :80 by default. localhost.png.

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