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What is Next.js Development?

Next.js development is the practice of building React applications on Next.js — the open-source React framework maintained by Vercel that adds server-side rendering, static generation (SSG), Incremental Static Regeneration (ISR), file-system routing, the App Router with React Server Components, built-in image and font optimisation, route-level metadata for SEO, and an API-route layer that lets the same project serve both the front-end and lightweight back-end endpoints. Next.js powers OpenAI's site, Notion's marketing pages, TikTok's web, Hulu, GitHub Docs, and the bulk of modern Vercel-deployed product sites.

Our Next.js practice covers four output paths: SSG marketing sites and blogs built with Server Components and static export; ISR-backed e-commerce and publishing with on-demand revalidation; headless front-ends consuming WordPress, Shopify, Drupal, Sanity, or Contentful; and Pages Router → App Router migrations for legacy Next.js projects. For pure SPAs with no SSR see our React.js development services; for a fixed-scope design-to-SPA conversion see design to React & Angular.

App Router vs Pages Router — and Why It Matters

Next.js has two coexisting routing systems. The Pages Router (the original, stable since 2016) and the App Router (introduced in Next.js 13, stable from 13.4). Most Next.js development pages on Google still describe the Pages Router as if the App Router doesn't exist. Honest decision matrix:

App Router (Next.js 13+) — our default

  • React Server Components by default — less JS shipped to the browser, faster TTI.
  • Streaming & Suspense — show shells immediately, hydrate islands as data arrives.
  • Nested layouts — shared UI persists across navigation, partial re-renders.
  • Parallel & intercepting routes — modals, tabbed views, dashboard slots.
  • Server Actions — form submissions and mutations without a separate API route.
  • New metadata API for type-safe SEO at the route level.
  • All new Next.js features ship here first.

Pages Router — when it still fits

  • You're maintaining a large existing Pages-Router app and a migration isn't budgeted.
  • You rely on libraries that don't yet support RSC (some auth and analytics SDKs).
  • Your team is fluent in getServerSideProps / getStaticProps and the project ships next month.
  • Scope is narrow and the rewrite cost outweighs the App-Router benefit.
  • Still fully supported by Next.js core — but new features land in App Router first.

SSR vs SSG vs ISR vs CSR — Rendering Strategy Per Route

One of Next.js's biggest wins is that rendering strategy is no longer a project-level decision. In the App Router you mix strategies per route (and per component) on the same site. Quick reference:

  • SSG (Static Site Generation) — content rendered at build time, served as static HTML. Use for marketing pages, docs, blog posts, anything that updates with each deploy.
  • ISR (Incremental Static Regeneration) — static HTML with on-demand or time-based revalidation. Use for e-commerce category pages, news, programmatic SEO at scale, anywhere instant publishing matters.
  • SSR (Server-Side Rendering) — HTML rendered on every request. Use for user-specific content, personalised feeds, dashboards behind authentication, anything where the response depends on the request.
  • CSR (Client-Side Rendering) — interactive islands inside a Server Component tree. Use for filters, charts, editors, drag-and-drop UIs — anything that needs useState, useEffect, or browser APIs.
  • PPR (Partial Pre-Rendering) — the new experimental mode that pre-renders the static parts of a page and streams the dynamic islands. Where Next.js is heading.

If you don't know which to pick for a route, ask. We will tell you what we'd choose and why.

Why Choose Next.js for Your Project

Next.js is a React-based framework that enables fast rendering, superior SEO performance, and smooth scalability — making it ideal for modern, production-grade web applications. If you need a pure SPA with no server-rendering at all, see our React.js development services instead. Building on Vue rather than React? The equivalent SSR/SSG framework is Nuxt 3 — see our Vue.js development services. Need the API layer scoped separately? See our Node.js development services for Express, Nest.js, and Fastify back-ends. Building a Next.js headless storefront on the Shopify Storefront API? Our Shopify development services cover the commerce-side setup — or our BigCommerce development services for Catalyst, BigCommerce's official Next.js + GraphQL Storefront API headless framework.

It's the perfect choice for businesses seeking optimized performance, strong SEO visibility, and seamless integration with APIs and headless CMSs.

Why Choose MarkupFox for Next.js Development

At MarkupFox, we combine React expertise and Next.js proficiency to deliver highly optimized web apps tailored to your business goals. Starting from a Figma or PSD and want the SPA scoped as a fixed package? See our design to React & Angular conversion service.

  • 100% hand-coded and performance-optimized applications using the latest Next.js features.
  • Experienced developers proficient in SSR, SSG, ISR, and API integration.
  • SEO-friendly, scalable, and mobile-first design implementation.
  • Custom development solutions for startups, enterprises, and digital agencies.
  • End-to-end project support with transparent communication and on-time delivery.

Who Can Use This Service

  • Businesses looking for SEO-friendly, fast-loading React-based websites.
  • Startups needing rapid MVP or scalable product launches.
  • Agencies outsourcing modern web app development.
  • Brands migrating existing React or static sites to Next.js.
  • Companies seeking server-side rendered eCommerce or corporate websites.

Features & What We Provide

  • Custom Next.js Application Development - Tailored SPAs, PWAs, and full-scale web applications.
  • Server-Side Rendering (SSR) - Enhanced speed and SEO through efficient server rendering.
  • Static Site Generation (SSG) - Build super-fast, static websites with dynamic capabilities.
  • API Development & Integration - Seamless backend connectivity with REST or GraphQL APIs.
  • Headless CMS Integration - Connect with WordPress, Strapi, Sanity, or Contentful.
  • UI/UX Implementation - Pixel-perfect design conversion from Figma, XD, or PSD to Next.js.
  • Performance Optimization - Image optimization, caching, lazy loading, and code splitting.
  • Testing & Maintenance - Regular updates, bug fixes, and QA to keep your app smooth.
  • Cross-Browser & Device Compatibility - Responsive and consistent across all devices.

Support & Satisfaction Guaranteed

We offer dedicated post-launch support, free maintenance, and a 100% satisfaction guarantee with all Next.js projects.

Our team ensures your website or web app performs seamlessly, scales efficiently, and delivers a superior experience for every user.

Some FAQ

Frequently Asked Questions


01. What is Next.js development and when should I use it?

Next.js development is the practice of building React applications on top of Next.js — the open-source React framework maintained by Vercel that adds server-side rendering, static generation, file-system routing, the App Router with React Server Components, image and font optimisation, and a built-in API-route layer. Use Next.js when SEO matters, when you want React Server Components to ship less JavaScript to the browser, or when you're pairing React with a headless CMS or commerce back-end. If you don't need any server rendering, a pure React SPA via our React.js development services is simpler.

App Router for all new projects. The Pages Router still works and is supported by Next.js core, but the App Router (introduced in Next.js 13 and stable from 13.4) is where new features ship — React Server Components, streaming, partial pre-rendering, parallel routes, intercepting routes, and the file-system-driven layout system. For legacy projects on the Pages Router we either keep them there (when scope is narrow) or run an incremental migration route-by-route. We will recommend during scoping.

SSG (Static Site Generation) at build time when content rarely changes (marketing pages, docs, blog posts). ISR (Incremental Static Regeneration) when content updates periodically and instant publishing matters (e-commerce category pages, news, programmatic SEO). SSR (Server-Side Rendering) on every request when content is user-specific or changes per request (dashboards, personalised feeds). CSR (Client-Side Rendering) inside a Server Component tree for the truly interactive islands (filters, charts, editors). In the App Router these are no longer mode-level decisions — they are per-component, mixing freely on the same page.

Yes. We hand-code Next.js applications from Figma (preferred), PSD, Adobe XD, and Sketch source files. App Router structure, TypeScript-typed components, Tailwind / CSS Modules / styled-components (your choice), Next.js Image and Font components, route-level metadata for SEO, and a fixed deployment pipeline. For a fixed-scope SPA conversion package, see our sister design to React & Angular conversion service.

Common pairings: headless WordPress via WPGraphQL or REST for content-driven sites; Shopify Storefront API (see design to Shopify) for headless commerce; Drupal JSON:API for enterprise content models; Sanity, Contentful, Strapi, Storyblok, Payload, and Hygraph for headless CMS. We handle preview mode for editors, on-demand revalidation for instant publishing, image optimisation through next/image, and route-level metadata for SEO.

We deploy to Vercel (most common — built by the team behind Next.js, supports every feature day-one), Cloudflare Workers via OpenNext, Netlify, AWS via SST or Amplify, or self-hosted Node behind Nginx. We pick based on your team's existing infrastructure, edge requirements, and budget — Vercel for fastest setup, Cloudflare Workers for global edge runtime, self-hosted when there are data-residency or budget constraints.

Yes. Common modernisation work: Pages Router → App Router migration (incremental, route-by-route, never big-bang), JavaScript → TypeScript with strict mode, getServerSideProps → Server Components, custom → the new metadata API, next/link refactors for Next.js 13+, and Lighthouse-target performance audits with Image and Font component adoption. We confirm scope after a 1-week audit.

Inner pages start at $129; a home-page Next.js build is $299. A small marketing site (5–8 pages) runs about 2–3 weeks; a mid-size Next.js app with App Router, headless CMS integration, and authentication runs 4–8 weeks; full Pages-to-App-Router migrations are scoped after an audit. We confirm fixed scope and timeline in writing before kickoff.