React vs Next.js: Which Framework Should You Choose?
React and Next.js are not competitors — Next.js is built on React. But the choice between a pure React SPA and a Next.js application has major implications for SEO, performance, and developer experience.
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What Next.js Adds to React
Next.js layers server-side rendering, static site generation, file-based routing, image optimisation, and API routes on top of React. For most production websites that need SEO and fast initial loads, these features are not optional extras — they are essential.
When a React SPA Makes Sense
If you are building a dashboard, internal tool, or any application behind authentication where SEO is irrelevant, a plain React SPA is simpler to set up and reason about. You avoid the server/client hydration complexity that Next.js introduces.
Performance: The SSR Advantage
Search engines and users both benefit from server-rendered HTML. Core Web Vitals scores — particularly LCP and FID — are consistently better with Next.js SSR or SSG compared to a client-rendered React SPA on the same hardware.
The Developer Experience Factor
Next.js 13+ with the App Router introduces React Server Components, which reduce JavaScript bundle sizes dramatically. For teams already familiar with React, the learning curve is shallow and the productivity gains are immediate.
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