Next.js vs React

Clear comparison — React vs Next.js

React is a UI library. Next.js is a framework built on React. You still write components — Next.js decides how they are routed, rendered, and shipped.

Real-life example: React is flour and recipes. Next.js is a bakery brand with ovens, delivery routes, and a storefront already set up.

• React: UI components only — you add routing and build tools yourself
• Next.js: routing, SSR/SSG, APIs, and optimizations included
• React SPA: often one index.html; client fetches data after load
• Next.js: server can send ready HTML for SEO and first paint
• React: great for dashboards inside another backend
• Next.js: great for websites, blogs, SaaS apps, and marketing pages

When to choose each

Choose React (Vite) when you need a pure client app, an embed inside another system, or you already have a separate backend API.

Choose Next.js when you want SEO, file-based routes, server rendering, or one repo for frontend plus lightweight APIs.

Real-life example: Use a bicycle (React SPA) for a short park ride. Use a delivery van (Next.js) when you must carry packages, follow a map, and arrive on a schedule.

• Pick React + Vite: admin panels, widgets, learning React alone
• Pick Next.js: public sites, blogs, e-commerce, fullstack starters
• You already know React? Next.js is the next natural step on Rishtaara

Code — React SPA vs Next.js page

In a Vite React SPA you mount one App and use a client router. In Next.js App Router, each route folder has a page.tsx that can render on the server by default.

Real-life example: The SPA is one big notebook where you flip pages yourself. Next.js is a binder with labeled tabs — open the tab named about and that page is ready.

// src/main.tsx
import { createRoot } from "react-dom/client";
import App from "./App";

createRoot(document.getElementById("root")!).render(<App />);

// src/App.tsx — you wire routes yourself (e.g. React Router)
export default function App() {
  return <h1>Hello from a React SPA</h1>;
}

// File path = URL. app/page.tsx → "/"
// Server Component by default — no createRoot needed

export default function HomePage() {
  return (
    <main>
      <h1>Hello from Next.js</h1>
      <p>This HTML can be rendered on the server.</p>
    </main>
  );
}