Next.js wraps ReactA JavaScript library for building UIs — component trees and declarative rendering for the web. with file-based routing, server rendering, and static generation — one codebase for SEO-friendly pages and interactive UIUser interface — the parts of software people see and interact with.. Used for marketing sites, docs, e-commerce storefronts, and full-stack apps on VercelA platform for front-end deployment — hosts Next.js and static sites with edge functions.. Example: a blog that pre-renders HTMLHyperText Markup Language — the standard markup for structuring web pages. at build time but hydrates ReactA JavaScript library for building UIs — component trees and declarative rendering for the web. on the client.

Next.js became the default way to ship ReactA JavaScript library for building UIs — component trees and declarative rendering for the web. with SSRServer-side rendering — HTML generated on the server for faster first paint and SEO., routing, and static generation in one toolchain.

It bridged SPA ergonomics with SEO-friendly server rendering before ReactA JavaScript library for building UIs — component trees and declarative rendering for the web. Server Components.