Getting Started with Next.js 15 and the App Router

Introduction

Next.js 15 brings significant improvements to the App Router, making it easier than ever to build performant web applications. In this guide, we'll explore the key features and how to get started.

What's New in Next.js 15

The biggest changes in Next.js 15 include improved Turbopack support, enhanced caching strategies, and better TypeScript integration. Let's dive into each of these.

Turbopack by Default

Turbopack is now the default bundler for development, offering significantly faster hot module replacement and build times compared to webpack.

npx create-next-app@latest my-app --turbopack

Server Components

Server Components remain the foundation of the App Router. They allow you to fetch data directly in your components without additional API layers.

export default async function Page() {
  const data = await fetch('https://api.example.com/data')
  const json = await data.json()
  return <div>{json.title}</div>
}

Conclusion

Next.js 15 is a major step forward for React-based web development. The improvements to Turbopack and server components make it an excellent choice for building production-ready applications.