React is a UI library. Next.js is a full framework built on top of React. The question isn't which is better — it's which is right for your use case.
Use React when:
- You're building a SPA (Single Page Application)
- SEO is not a priority
- You want full control over your stack
Use Next.js when:
- SEO matters (marketing sites, blogs, e-commerce)
- You need server-side rendering or static generation
- You want a batteries-included framework
For most client projects in 2025, we default to Next.js. The App Router, built-in image optimization, and edge functions make it the smarter choice for production apps.