Building Modern Web Apps with Next.js 15

Next.js 15 brings exciting new features that make building modern web applications even more powerful and efficient. In this post, I'll walk through some of the standout features and how they can improve your development experience.

Experimental Partial Pre-rendering (PPR)

One of the most exciting features in Next.js 15 is Partial Pre-rendering (PPR). This experimental feature allows you to combine the benefits of static generation with server-side rendering in a single route.

// Enable PPR in next.config.js
const nextConfig: NextConfig = {
  experimental: {
    ppr: true,
  },
};

export default nextConfig;

With PPR, you can have parts of your page that are statically generated at build time, while other parts are dynamically rendered on the server. This gives you the best of both worlds: fast loading times for static content and fresh data for dynamic content.

Improved Performance

Next.js 15 comes with several performance improvements:

• Faster builds with improved caching mechanisms
• Optimized bundling for smaller client-side JavaScript
• Better tree-shaking to eliminate unused code

Enhanced Developer Experience

The development experience has also been improved with:

• Better error messages and debugging information
• Improved hot reload performance
• Enhanced TypeScript support

Getting Started

To get started with Next.js 15, you can create a new project:

npx create-next-app@canary my-app --experimental-app

Or upgrade an existing project:

npm install next@canary react@rc react-dom@rc

Conclusion

Next.js 15 represents a significant step forward in React-based web development. The combination of PPR, performance improvements, and enhanced developer experience makes it an excellent choice for building modern web applications.

Have you tried Next.js 15 yet? I'd love to hear about your experience!