Install Angular and Create Your First App

Let’s set up Angular the clean way using Angular CLI.

Step 1: Install Node.js

Angular needs Node.js. Install the latest LTS from nodejs.org.

Check versions:

node -v
npm -v

Step 2: Install Angular CLI

npm install -g @angular/cli
ng version

Step 3: Create a new Angular app

ng new my-angular-app
cd my-angular-app
ng serve -o

• ng serve starts a local dev server
• -o opens the browser automatically

Common setup issues

“ng is not recognized”

Close and reopen your terminal, then try again.
If still not, reinstall Node.js LTS and retry CLI install.

Port already in use

ng serve --port 4300

What you should see

You’ll see the default Angular starter page, running on:

http://localhost:4200

Next: Understand the project structure so you know where to code.