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WebWelcome to the Future: React 19 Setup Guide (2025 Edition)

Welcome to the Future: React 19 Setup Guide (2025 Edition)

3 mins Read
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React 19 is the latest major release of React, bringing new features and optimizations for improved performance and developer experience. Vite, a modern build tool, is one of the best ways to set up a React project efficiently. This guide walks you through installing and configuring React 19 with Vite, ensuring a smooth development experience.

Why Choose Vite for React 19?

why react 19

Vite offers several advantages over traditional build tools like Create React App (CRA):

  • Lightning-fast development server: Uses native ES modules to serve code, making hot module replacement (HMR) extremely fast.
  • Optimized production build: Uses Rollup for bundling, resulting in smaller and more efficient output.
  • Minimal configuration: Comes with sensible defaults and requires little to no configuration.
  • Support for modern JavaScript: Supports ES6+, TypeScript, and JSX out of the box.

Prerequisites

Before getting started, ensure you have the following installed:

  • Node.js (v18 or later) - Download here
  • npm or yarn - Installed with Node.js
  • A terminal or command prompt

Step 1: Create a New React 19 Project with Vite

To create a new React project using Vite, follow these steps:

Using npm:

npm create vite@latest my-react-app -- --template react

Using yarn:

yarn create vite@latest my-react-app --template react

Using pnpm:

pnpm create vite@latest my-react-app --template react

Replace my-react-app with your desired project name.

Step 2: Navigate to the Project Directory

After you create the project, go to the project directory:

cd my-react-app

Step 3: Install Dependencies

Once inside the project folder, install the required dependencies:

npm install

Or, if using yarn:

yarn install

Or, if using pnpm:

pnpm install

Step 4: Start the Development Server

To start the Vite development server, run:

npm run dev

Or using yarn:

yarn dev

Or using pnpm:

pnpm dev

The output will show a local development server URL, typically http://localhost:5173/. Open it in your browser to see your React 19 app running.

Step 5: Project Structure Overview

After running the setup, your project structure will look like this:

project structure

Key Files and Directories

  • src/ - Contains your main application logic.
  • main.jsx - Entry point for the React app.
  • App.jsx - Main application component.
  • vite.config.js - Vite configuration file.
  • index.html - Template file where the React app is injected.

Step 6: Configure ESLint and Prettier (Optional but Recommended)

To keep your code quality and consistency high, set up ESLint and Prettier:

npm install --save-dev eslint prettier eslint-config-prettier eslint-plugin-react eslint-plugin-react-hooks

Create an .eslintrc.json file:

{
  "extends": ["eslint:recommended", "plugin:react/recommended", "prettier"],
  "plugins": ["react", "react-hooks"],
  "rules": {
    "react/react-in-jsx-scope": "off"
  }
}

Step 7: Add TypeScript Support (Optional)

If you prefer using TypeScript, create a new project with the React + TypeScript template:

npm create vite@latest my-react-app -- --template react-ts

Or install TypeScript in an existing project:

npm install --save-dev typescript @types/react @types/react-dom

Step 8: Build and Deploy

When ready to deploy your project, run:

npm run build

This generates an optimized dist/ folder that can be deployed to any static hosting service like Vercel, Netlify, or GitHub Pages.

Conclusion

Setting up a React 19 project with Vite is straightforward and efficient. With its fast development server, optimized build process, and easy configuration, Vite is an excellent choice for modern React development. Follow these steps, and you’ll be up and running with your React 19 app in no time!

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