How to Build a Modern Web App in 2025

September 2, 2025
4 min read

Building modern web apps in 2025 requires a combination of cutting-edge tools and timeless best practices. This guide covers the key components to create performant, accessible, and visually stunning applications.

2025 Web Development Stack

Key Technologies

  • Next.js 15

    New React framework with AI integration

  • Tailwind CSS 3.5

    Enhanced dark mode detection

  • TypeScript 5.5

    Improved performance features

  • Vercel SDK

    Native edge deployment tools

Pro Tip for 2025

"Use relative time formatting for international users - it's just as easy as using the built-in JavaScript Temporal API."