Building Modern Web Apps with Next.js 15

Introduction

Next.js 15 brings significant improvements to the React ecosystem, making it easier than ever to build performant, scalable web applications.

Key Features

App Router

The new App Router provides better performance and developer experience with:

• Nested layouts
• Server components by default
• Streaming and suspense

Server Actions

Server Actions simplify data mutations and form handling without requiring API routes.

async function createPost(formData: FormData) {
  'use server'
  const title = formData.get('title')
  // Handle post creation
}

Performance Optimizations

Next.js 15 includes automatic optimizations for:

• Image loading
• Font optimization
• Code splitting

Conclusion

The future of web development is exciting, and Next.js continues to lead the way in providing excellent developer experience while maintaining top-tier performance.