Google Antigravity Tutorial for Beginners: Build Your First App (Step-by-Step)

What is Google Antigravity, and how can it help you build software without writing code from scratch? In this beginner's tutorial, I walk you through the Open Agent Manager interface and show you how to use AI agents to create real, functional applications.

We learn by doing. I’ll show you how to set up a project, prompt the agent to build a Pomodoro Focus Timer, and iterate on the design using simple English instructions. Finally, I show you how to export your code and launch it for free using Netlify.

In this video, you will learn:

The Interface: Understanding the Chat, Preview, and File Explorer in Antigravity.

Prompting: How to ask the agent to build exactly what you want.

Iterating: Adding complex features (like audio alarms) on the fly.

Deployment: How to use Netlify Drop to publish your local files.

The Prompts Used: Copy these to try the project yourself:

"Create a functional Pomodoro timer web app using HTML, CSS, and JavaScript. It should have a 25-minute default timer, start/pause/reset buttons, and a visual progress ring."

"Update the code to add a sound effect when the timer hits zero. Also, add an input field in the HTML so the user can set a custom time in minutes."

Links & Resources:

Antigravity: https://antigravity.google

Netlify Drop: https://app.netlify.com/drop

0:00 Intro: Coding without writing code
0:15 What is Antigravity (Open Agent Manager)?
0:54 The Setup
3:14 Prompting the AI for a Pomodoro Timer
6:19Inspecting the Code: How the AI organizes files
7:11 Iteration 1: Adding Sound Effects & Custom Inputs
10:39 How to Export your Code (Getting the files)
11:42 Deployment: Hosting for free with Netlify Drop