React Development Services

Plain React (Vite SPA) fits when

• Everything sits behind a login — dashboards, admin panels and internal tools do not need search engines to read them.
• Hosting should be simple — a static bundle on S3 and CloudFront, Netlify or any CDN, with no Node.js server to run.
• You already have an API — the front end consumes a separate back end in Node.js, Python, Laravel or .NET.
• Heavy client interaction — drag-and-drop editors, canvas tools and real-time boards where most work happens in the browser.

Choose Next.js instead when

We will recommend Next.js if any of these apply:

• Public pages must rank — product, category and content pages need server-rendered HTML and per-page metadata.
• First load speed matters — marketing traffic on mobile networks judges you in the first two seconds.
• Content comes from a CMS — editors publish through a headless CMS and pages must refresh without redeploys.

Where state should live

• Local component state — the default; lift it up only when two components genuinely share it.
• URL state — filters, tabs and pagination belong in the query string so views can be shared and bookmarked.
• Context — for rarely changing values such as theme, locale and the signed-in user — not for fast-changing data.
• Zustand — a small store for cross-screen client state when Context starts causing re-renders.
• Redux Toolkit — for large apps with complex workflows, many contributors and a need for strict, traceable updates.

How we fetch server data

• TanStack Query — our default: caching, background refetching, retries, pagination and optimistic updates without hand-written loading logic.
• RTK Query — when the app already runs on Redux Toolkit and one data layer is simpler.
• fetch or Axios — for one-off calls such as form submissions, wrapped in a typed API client.
• GraphQL clients — when the back end exposes GraphQL, with generated TypeScript types from the schema.

Performance and testing habits

• Route-level code splitting — React.lazy and Suspense so each screen loads only its own code.
• Measure before memoising — the React Profiler shows which components actually re-render; memo and useCallback go only where they help.
• Virtualised lists — long tables and feeds render only the rows on screen.
• Bundle budgets — size checks in CI so a new dependency cannot silently double the download.
• Test pyramid — Vitest and React Testing Library for components, Playwright for the critical user journeys.

Common migration paths

• Create React App → Vite — CRA is deprecated; moving to Vite gives faster builds and a supported toolchain with few code changes.
• React SPA → Next.js — components move across largely intact; data fetching moves to the server and URLs are mapped with redirects.
• Class components → hooks — rewritten screen by screen alongside feature work, not as a separate freeze.
• jQuery or AngularJS → React — React mounted inside the old app, taking over one module at a time until the legacy code can be removed.
• Web → React Native — shared types, validation and API clients moved into a common package for the mobile app.