Next.js Development
Server-rendered React apps, static sites and full-stack builds in Next.js and TypeScript
React that runs on the server
Next.js is what you reach for when a React project also needs good search visibility, or when some of the work should happen on the server rather than in the browser. Plain React renders in the visitor's browser — fine for dashboards and internal tools where SEO doesn't matter. Next.js renders the first view on the server and sends real HTML down the wire, so search engines and slower devices get content immediately rather than sitting on a blank screen while JavaScript loads.
Whoooop Ltd builds in Next.js using the App Router and TypeScript. We've worked across the full stack for more than 15 years, which means the decisions we make about routing, caching and data fetching are shaped by how the system behaves under load — not just how the documentation says to set it up.
What we build with Next.js
Server-rendered React applications
Pages where content depends on the user, the request, or live data — Next.js renders these on the server so each visitor gets a complete page. Useful where content is personalised, gated, or drawn from a database rather than fixed at build time.
Static sites that stay current
Pages generated at build time are fast and cheap to serve. With Next.js incremental static regeneration, individual pages rebuild in the background after the underlying content changes — so a product catalogue or news section stays current without a full rebuild every time. We cover CMS-backed sites on our CMS development page.
Full-stack builds with API routes
Next.js route handlers mean a straightforward server-side API — form processing, webhook handling, a simple data endpoint — can live in the same codebase as the front end. For anything more substantial, that back end usually moves to a dedicated Node.js service.
Headless CMS frontends
Fetching content from Contentful, Sanity, Prismic or a custom API and rendering it statically or on request — Next.js was built for this pattern. The client edits in a familiar interface; the published site renders fast and looks exactly right.
Migrating from Create React App
Create React App is no longer maintained and leaves projects stranded on an ageing toolchain. We move CRA codebases to Next.js — page routing, server-side data fetching, and any server functions the app needs — with as little disruption as possible to components you've already built.
Performance work on an existing Next.js site
A Next.js site can still be slow if the caching strategy is wrong, too much work is pushed to the client, or the image pipeline isn't configured. We diagnose and fix this — our website speed optimisation page covers how we approach Core Web Vitals work.
Choosing the right tool: Next.js, React, or something else?
Next.js is a framework built on top of React, not a replacement for it. If what you need is a client-side single-page app — a dashboard, an interactive tool, something where search visibility is irrelevant — plain React may be the cleaner answer. Our React development page covers that work. If the project is mostly editorial content with very little interactivity, a static site generator like Astro often produces a faster, simpler result. We'll say so rather than pick the tool we feel like using.
The same logic applies at the other end: if you need a proper back-end service with its own database, queues and scheduled jobs, the API route system in Next.js is usually the wrong home for it. That's where our web application development work begins.
TypeScript and the App Router
We write Next.js on TypeScript by default. The App Router introduced React Server Components, which shift rendering work to the server and reduce the JavaScript sent to the browser — but it also changes how you think about component boundaries and data flow. We've worked through that shift on real projects rather than learning it at your expense.
Testing and deployment
We test component behaviour with Vitest and end-to-end flows with Playwright. For deployment, Vercel is the natural home for most Next.js builds, but we're equally comfortable with AWS, containerised environments, or your existing infrastructure. The CI/CD and hosting side is covered on our cloud hosting and deployment page.
Building something in Next.js?
Tell us about the project and we'll talk through how to approach it — framework choice included.
Get in Touch