How to Build a Simple App using GitHub Copilot in 1 Hour (2026)

If you're a solo founder or indie hacker looking to build an app quickly, you might feel overwhelmed by the coding requirements. But what if I told you that you could leverage AI to help you code faster? That’s where GitHub Copilot comes in. It’s like having a coding partner who can suggest code snippets, complete functions, and even help you through debugging—all while you focus on the bigger picture.

In this tutorial, I’ll guide you through building a simple app using GitHub Copilot in under an hour. Let's dive in!

Prerequisites

Before we start, make sure you have the following:

1. GitHub Account: You’ll need this to access GitHub Copilot.
2. Code Editor: Visual Studio Code (VS Code) is recommended.
3. GitHub Copilot Subscription: Costs $10/month or $100/year after a free trial. It's essential to have this set up to use Copilot effectively.
4. Basic Understanding of JavaScript: This will help you make sense of the suggestions Copilot provides.

Step 1: Setting Up Your Environment (10 minutes)

1. Install Visual Studio Code: Download and install from here.
2. Install GitHub Copilot:
   • Open VS Code.
   • Go to Extensions (Ctrl+Shift+X) and search for "GitHub Copilot".
   • Click on "Install" and follow the prompts to sign in with your GitHub account.
3. Create a New Project: Open a new terminal in VS Code (Ctrl+`) and create a new folder for your project. Run:

   mkdir simple-app
   cd simple-app
   npm init -y
   

Step 2: Writing Your First Code (20 minutes)

We’re going to build a simple to-do list application. Here’s how to start:

1. Create Your Main File:

   • In your project folder, create a new file named index.js.
   • Start by typing a comment about what you want to build, e.g., // To-Do List App. Copilot will often suggest initial code based on this comment.

2. Get Copilot to Generate Code:

   • Type function addTask and let Copilot suggest the function body. It might generate something like this:

     function addTask(task) {
         const taskList = document.getElementById('taskList');
         const newTask = document.createElement('li');
         newTask.textContent = task;
         taskList.appendChild(newTask);
     }
     

   • Accept the suggestion by pressing Tab.

3. Continue Building:

   • Keep adding functions such as function removeTask and function displayTasks. Let Copilot help you with the implementation.

4. Set Up HTML:

   • Create an index.html file and structure your HTML. Start typing and let Copilot fill in the form elements for adding tasks.

Expected Output

By the end of this step, you should have a basic HTML structure and JavaScript functions that allow you to add and remove tasks from a list. The app won't look fancy yet, but it will be functional.

Step 3: Testing Your App (15 minutes)

1. Run Your App: Open the index.html file in your browser.
2. Debugging with Copilot: If you encounter issues, describe the problem as a comment in your code. For example, // Why doesn't the task add? and let Copilot suggest fixes.

Troubleshooting Common Issues

• Code Doesn’t Work: Make sure you've accepted the right suggestions. Sometimes, Copilot may suggest unconventional solutions.
• Styling Issues: If your app looks off, try adding some CSS manually. Copilot's strength is in logic, not design.

What's Next?

Now that you have a basic app, consider enhancing it by adding features like:

• Local storage to save tasks.
• User authentication.
• A more polished UI using frameworks like Bootstrap.

Conclusion

Building a simple app with GitHub Copilot can be done in about an hour, especially if you leverage its suggestions effectively. Remember, while Copilot can speed up your coding process, it’s essential to review its suggestions critically.

Start here: Set up your GitHub Copilot and follow the steps above to get your first app off the ground.

What We Actually Use

In our stack, we rely heavily on GitHub Copilot for quick iterations and prototyping. It's not perfect, but it saves us time, especially when we're trying to ship quickly.