Build Apps Without Code Using Google AntiGravity

Learn to Build Web Applications with Google’s No-Code AI Platform

Google AntiGravity is a powerful, no-code platform that allows you to create a wide range of applications, from simple websites to complex AI-powered tools, using only text prompts. This guide will walk you through setting up and using AntiGravity, focusing on its Agent Manager to bring your ideas to life without writing a single line of code. You’ll learn how to start with basic projects, refine them into more complex applications, and understand the underlying structure of app development.

Prerequisites

• A computer (Mac or PC)
• An internet connection
• A Google account

Step 1: Download and Install Google AntiGravity

To begin, you need to install the AntiGravity application on your computer.

1. Navigate to the official AntiGravity website: anti-gravity.google.
2. Download the installer compatible with your operating system (Mac or PC).
3. Run the installer and follow the on-screen prompts to complete the installation process.

Step 2: Configure AntiGravity Settings

Upon launching AntiGravity for the first time, you’ll encounter a few important configuration options.

1. Choose a Theme: Select your preferred interface theme (e.g., Dark Mode).
2. Configure the AntiGravity Agent: This is a crucial step that determines how much control the AI agent has over the development process. You’ll see several options:
   • Recommended (User Review): The agent will prompt you to review and approve its actions before proceeding. This is ideal for beginners who want to understand the process.
   • Agent-Driven Development: The agent will proceed autonomously without asking for constant permission. This is faster but offers less oversight.
   • High Control (Step-by-Step Approval): The agent will ask for your permission for almost every action it takes. This offers the most control but can be time-consuming.

   For this tutorial, we’ll select the option that offers a balance of control and automation, often the recommended setting or one that requires explicit confirmation for key actions.

3. Sign In: Sign in using the Google account you wish to use with AntiGravity.

Step 3: Understand the AntiGravity Interface

Once logged in, you’ll see the main AntiGravity dashboard, which consists of three primary surfaces:

1. Traditional IDE: Designed for developers, this interface allows you to open existing code folders from your computer or clone projects from repositories like GitHub. This is not the focus of this no-code guide.
2. Agent Manager: This is the core of AntiGravity for no-code development. It features an Agent Panel where you input text prompts to generate applications and a Playground for rapid prototyping and initial idea development. The Workspace is where your project becomes a real, deployable application.
3. Browser Option: This allows AntiGravity to open a local browser instance (e.g., Chrome) to test the applications it builds in real-time.

Step 4: Build Your First Application (Habit Tracker)

We’ll start with a simple habit tracking application to get familiar with the process.

1. Open the Agent Manager and select the Playground mode for quick ideation.
2. Enter a prompt in the Agent Panel. For a habit tracker, you could use: “Build a simple habit tracking app. Users should be able to add different habits, mark them as complete, and save everything to local storage. The design should be minimal and clean with no extra features.”
3. Choose AI Model and Strategy:
   • AI Model: Select an AI model. Gemini 3 Pro is recommended for its advanced capabilities. You might see options like ‘low’ or ‘high’ reasoning, or ‘flash’ for speed. Choose based on your needs.
   • Strategy: Select ‘Planning’. This allows the AI to create an implementation plan before writing code, giving you insight into its process. Alternatively, ‘Fast’ will execute the task immediately.
4. Initiate the process by clicking the generate button.

Understanding Artifacts

As the AI works, it generates ‘artifacts’. These are documents that outline the development process:

• Implementation Plan: Details the steps the AI will take to achieve the goal.
• Task Plan: A breakdown of specific tasks required for the implementation.
• Walkthrough: A summary of what the AI did, often accompanied by a video demonstration of the app in action.

Expert Tip: For your first few projects, always select the ‘Planning’ option. This helps you understand how the AI interprets your prompts and breaks down complex tasks.

Step 5: Review and Test the Application

Once the AI completes the task, AntiGravity will typically open a browser window to test the application.

1. Observe the AI interacting with the application in the browser. It will perform actions like adding habits and marking them complete.
2. If you chose a setting that requires user input, you may receive prompts asking for confirmation. Review these carefully and confirm actions that align with your vision.
3. The AI will generate a Walkthrough artifact, often including a video, showing the app’s functionality. Review this to ensure it meets your prompt’s requirements.

Step 6: Convert Playground Project to a Workspace

Applications built in the Playground are prototypes. To make them real, deployable projects, you need to move them to the Workspace.

1. Locate the folder icon (usually in the top bar) and click it.
2. Select the option to move your project from the Playground to a Workspace.
3. Choose a location on your computer (e.g., your Desktop) and create a new folder for your project (e.g., ‘Habit Tracker Project’).
4. Allow AntiGravity to trust the author if prompted.
5. Your project will now appear in the Workspace section, ready for further development or deployment.

Note: Moving a project to the Workspace allows it to be managed as a real project, which is necessary for deployment. You can continue refining it using follow-up prompts within the Workspace.

Step 7: Build a More Complex Application (AI Brief Generator)

Now, let’s build a more realistic application. This time, we’ll start directly in the Workspace.

1. Go to the Agent Manager and select ‘Open Workspace’, then ‘Open New Workspace’.
2. Create a new folder for this project (e.g., ‘AI Brief Generator’).
3. Develop a Prompt: For an AI Brief Generator, a detailed prompt is essential. You can even use Google Gemini to help craft your prompt. An example prompt could be:
   “You are an expert product manager, UX designer, and AI prompt engineer. Build a web app called ‘Briefly’. The target users are influencers, marketing agencies, and brand managers. The app should allow users to paste a rough brand email or notes and automatically convert it into a professional creator brief. Include features for inputting rough text, generating a formatted brief, and an option to export the brief. Ensure the design is clean and user-friendly.”
4. Select your preferred AI model (e.g., Gemini 3 Pro) and the ‘Planning’ strategy.
5. Initiate the generation process.

Reviewing Artifacts for Complex Projects

For more complex projects, pay close attention to the artifacts:

• Task List: Examine the detailed breakdown of planning, implementation, and verification stages.
• Implementation Plan: Verify that the plan aligns with your project goals and desired features. Note any assumptions the AI makes, such as default styling (e.g., dark mode).

Expert Note: If you notice something in the plan you don’t like (e.g., an unwanted default style), you can often modify it with a follow-up prompt *before* proceeding, or by editing the generated code later.

Step 8: Iterate and Refine Your Application

No-code development, like traditional coding, often requires iteration.

1. After the initial generation, test the core functionality of your AI Brief Generator.
2. Use follow-up prompts to enhance the application. For instance, if the first version is basic, you might prompt: “This is good, but I want a much more robust app that feels like a real dashboard with other functionalities like a history page and better organization.”
3. Continue refining the application with prompts until it meets your satisfaction.

Key Takeaway: AntiGravity’s strength lies in its ability to generate a significant portion of the application with initial prompts and then allow for iterative improvements via follow-up prompts. Even if the AI doesn’t achieve 100% perfection, the generated code is accessible for developers to finalize.

Step 9: Accessing and Deploying Your Code

AntiGravity generates code that is stored locally in the folder you created for your Workspace project.

1. Navigate to the project folder on your computer (e.g., ‘AI Brief Generator’). You will find all the generated code files here.
2. For Developers: This code can be handed over to a developer for further modifications or deployment.
3. For Publishing (Advanced): To make your application accessible online, you would typically:
   1. Create a repository on a platform like GitHub.
   2. Upload your project files from the local folder to GitHub.
   3. Use a hosting service like Vercel or Netlify to deploy your application from the GitHub repository.

Warning: The deployment process described above is more technical and generally geared towards developers. If you are purely a ‘vibe coder’ and want a simpler way to publish, consider alternative platforms.

Alternatives for Easier Deployment

If the technical steps for deployment seem daunting, Google offers other platforms or you can explore third-party options:

• Google AI Studio: A user-friendly platform for building AI-powered applications with simpler deployment options.
• Lovable: A popular no-code tool that often provides more streamlined ways to get applications online.
• Other platforms like Emergent, Base44, or Hostinger’s Horizons also offer various levels of ease for building and deploying applications.

Conclusion: Google AntiGravity is a powerful tool for building applications locally without code. While its core strength is in rapid development and prototyping, its integration with a traditional IDE structure makes it suitable for projects that may eventually require developer input. For pure no-code deployment, exploring alternative platforms might be more straightforward.

Source: Master 80% of Google AntiGravity in 24 Minutes (YouTube)