by Sai gowtham

How to change a port number in Angular App

In this tutorial, we are going to learn how to change a default port number in angular app which is created using the Angular CLI.

Changing port number

  1. Open the angular app in your favorite code editor.

  2. Navigate to the angular.json file and add your port number in serve options.

"serve": {
      "builder": "@angular-devkit/build-angular:dev-server",
      "options": {
        "browserTarget": "my-p-angular:build",
        "port": 2301      },
      "configurations": {
        "production": {
          "browserTarget": "my-p-angular:build:production"
        }
      }
}

Here I added a port number 2301.

  1. Now, run your app using ng serve command and your port number is changed successfully.
** Angular Live Development Server is listening on localhost:2301,
 open your browser on http://localhost:2301/ **

If you want to change the port number temporarily, you can use the following command.

ng serve --port 3405

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