Next.js 14 App Router: Everything You Need to Know

What Changed in Next.js 14

Next.js 14 brings significant improvements to the App Router, making it the default and recommended way to build applications.

Server Components

Server Components render on the server and send HTML to the client, reducing JavaScript bundle size.

TSXCopy
// This component runs only on the server
async function BlogList() {
    const posts = await fetchPosts();
    return <ul>{posts.map(p => <li key={p.id}>{p.title}</li>)}</ul>;
}

Data Fetching

With the App Router, data fetching happens directly in components using async/await.

Conclusion

The App Router is the future of Next.js, and Next.js 14 makes it production-ready.