src/App.jsx
import React, { useState, useEffect } from 'react'; import { BrowserRouter, Routes, Route } from 'react-router-dom'; import { QueryClient, QueryClientProvider } from '@tanstack/react-query';   const queryClient = new QueryClient();   export default function App() { const [user, setUser] = useState(null);   useEffect(() => { fetchCurrentUser().then(setUser); }, []);
return ( <QueryClientProvider client={queryClient}> <BrowserRouter> <Routes> <Route path="/" element={<Dashboard />} /> <Route path="/products" element={<Products />} /> <Route path="/profile" element={<Profile user={user} />} /> </Routes> </BrowserRouter> </QueryClientProvider> );
$ npm run dev 320ms
  ✔ VITE v5.4 ready in 320ms
$ npm run build
  → dist/ bundle 142 kB gzip 46 kB
⚛  React 19 · TypeScript · Vite 5 · Certified Experts

EXPERT
REACT
DEVELOPMENT
THAT PERFORMS

From blazing-fast SPAs to enterprise-grade dashboards — we engineer React applications that are component-driven, type-safe and architected to scale with your product.

250+ React Projects
7+ Years Experience
98% Client Retention
Stack We Ship
React 19 TypeScript Vite 5 Next.js 14 TanStack Query Zustand / Redux Tailwind CSS shadcn/ui Vitest & RTL React Native Storybook Vercel & AWS
WHAT WE BUILD

REACT DEVELOPMENT
SERVICES THAT DELIVER

Whether you need a high-performance SPA, a complex dashboard or a cross-platform mobile app — we've shipped it before and we'll build it better.

Custom React Applications

Bespoke SPAs and web apps engineered around your product requirements — component architecture, state management, routing and API integration done right.

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📊

Enterprise Dashboards & Admin UIs

Data-heavy dashboards with real-time updates, complex filtering, chart libraries and role-based access — built for thousands of daily active users.

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📱

React Native Mobile Apps

Cross-platform iOS and Android applications with shared business logic, native performance and seamless integration with your existing React web codebase.

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🔄

Migration & Modernisation

Migrate legacy jQuery, Angular or Vue codebases to modern React with TypeScript, full test coverage and zero feature regression.

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Performance Optimisation

Bundle splitting, lazy loading, memoisation, Core Web Vitals tuning and React Compiler upgrades — applications that score 95+ on Lighthouse.

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🧩

Component Library & Design Systems

Reusable, accessible, Storybook-documented component libraries built on Tailwind and shadcn/ui — the foundation every fast-moving team needs.

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ABOUT US

SENIOR REACT ENGINEERS,
NOT JUNIOR SHOPS

We are a specialist React engineering studio. Every project is led by a senior engineer with production experience in your specific domain — e-commerce, SaaS, fintech or enterprise tooling. No bait-and-switch, no offshore handoffs.

🧪

Test-First Development

Vitest, React Testing Library and Playwright e2e — every feature ships with tests, so refactors never break production.

📐

TypeScript by Default

Strict TypeScript across every project — no implicit any, full type safety from API response to rendered component.

Accessibility Baked In

WCAG 2.1 AA compliance from day one — semantic HTML, ARIA labels, keyboard navigation and screen reader testing on every build.

MEET THE TEAM →
Est. 2017
React Experts
// Senior engineers only

OUR REACT DELIVERY PROCESS

🔎 1

Discovery & Scoping

We audit your requirements, existing stack and user flows to define a component tree and data architecture before writing a line of code.

🗂 2

Design System Setup

Figma design tokens translated to Tailwind config, Storybook bootstrapped, and component API contracts agreed.

3

Iterative Build

Two-week sprints with demo deployments to Vercel previews — you see and test every feature before it merges to main.

🧪 4

QA & Performance

Automated test suite, Lighthouse CI gates, cross-browser testing and accessibility audit before every production release.

🚀 5

Launch & Handover

CI/CD pipeline on GitHub Actions, full documentation, knowledge transfer sessions and optional retainer support.

FULL SPECTRUM

EVERYTHING YOUR REACT
PROJECT NEEDS

From greenfield SPAs to incremental rewrites — a complete React capability under one roof, so you never need to stitch together multiple agencies.

🗺

SPA Architecture

Routing, code splitting, lazy loading and deep-link support.

🔄

Server State & Caching

TanStack Query, SWR, optimistic updates and background refetch strategies.

📦

Monorepo & Nx

Shared component packages, unified lint and CI across web & mobile.

🔒

Auth & RBAC

Clerk, Auth0, NextAuth — JWT and session flows with route guards.

📊

Data Visualisation

Recharts, D3, Tremor — interactive charts wired to live API data.

🤖

AI-Powered UIs

Streaming LLM responses, chat interfaces, AI copilots with Vercel AI SDK.

WHY TEAMS CHOOSE DATABOXSTUDIO FOR REACT

React.strict 🧹

Clean, Maintainable Code

ESLint, Prettier, conventional commits and enforced architecture boundaries — codebases your future team will thank us for.

TypeScript 📐

Fully Typed, Zero Surprises

Strict TypeScript from API layer to JSX — catching runtime errors at compile time before they reach your users.

Performance

Sub-Second Load Times

Bundle budgets, React.lazy, RSC-aware architecture and CDN-first deployment — Lighthouse scores that actually matter.

Agile 📋

Transparent Delivery

Weekly demos, live Vercel preview URLs and a shared Linear board — you see every commit before it ships.

INDUSTRIES WE SERVE

REACT EXPERTISE
ACROSS EVERY VERTICAL

We've built React applications for companies at every stage — from seed-funded startups to publicly listed enterprises across a wide range of industries.

🛒
E-Commerce & Retail
💳
Fintech & Payments
🏥
HealthTech & MedTech
📚
EdTech & E-Learning
💼
B2B SaaS
🏭
Manufacturing & Logistics
🏠
PropTech & Real Estate
📰
Media & Publishing
BY THE NUMBERS

RESULTS THAT SPEAK
FOR THEMSELVES

250+ React Apps Shipped
95+ Avg Lighthouse Score
🧪 90% Test Coverage Target
📅 7yr React Experience

WHAT OUR REACT CLIENTS SAY

Real feedback from product teams who trusted us with their React applications.

"

DataboxStudio rewrote our Angular 8 app in React + TypeScript in 14 weeks. The new codebase is 40% smaller, the Lighthouse score went from 54 to 97 and our team can actually understand the code. Night and day difference.

NP
Nina Patel Head of Engineering, ClaimSync SaaS
"

We needed a real-time trading dashboard in React that handled thousands of WebSocket updates per second without jank. DataboxStudio delivered — sub-16ms frame times at peak load. Genuinely impressive engineering.

TR
Tom Richards CTO, TradePulse Platform
"

Our React Native app ships on iOS and Android from a single codebase that shares 80% of its logic with our web React app. DataboxStudio architected the entire monorepo and it's been rock solid for two years.

LK
Laura Kim Founder, FitTrack Mobile App
FAQS

QUESTIONS WE HEAR
FROM EVERY CLIENT

Honest, direct answers to the questions that matter before you hire a React development partner.

info@databoxstudio.com Reply within 2 business hours
(+0160) 460 2038 Mon–Fri 9AM–6PM EST
Do you use React 18 or React 19 for new projects?+
All new projects start on React 19 with the React Compiler enabled. For existing codebases we assess compatibility first and plan a staged upgrade if needed — we never push a major version bump without a migration plan.
Should I use Next.js or plain React (Vite) for my project?+
It depends on your SEO requirements and rendering strategy. Next.js is ideal when you need SSR, SSG or ISR for public-facing pages. Vite + React Router v7 is the right choice for authenticated SPAs and dashboards where server rendering adds complexity without benefit. We'll give you a straight recommendation after a 30-minute scoping call.
What state management library do you recommend?+
For server state, TanStack Query is our default — it handles caching, background refetching and optimistic updates far better than anything custom. For client/UI state, Zustand for most projects and Redux Toolkit only when the team already has Redux expertise or the state complexity genuinely demands it.
Can you take over an existing React codebase?+
Yes — it's one of our most common engagements. We start with a structured audit covering component architecture, TypeScript coverage, bundle size, test coverage and accessibility before producing a written improvement roadmap. No work begins until you've approved the plan.
How do you handle large-scale React performance problems?+
We profile first with React DevTools Profiler and browser performance traces to locate actual bottlenecks — then address them with memoisation, virtualization (TanStack Virtual), bundle splitting, RSC migration where applicable and CDN asset optimisation. We don't guess.
Do you offer post-launch support and maintenance?+
Yes. Our retainer plans cover scheduled dependency upgrades, React major version migrations, security patches, bug fixing, feature additions and 24/7 emergency support with a 2-hour first response SLA for P1 incidents.
React
LET'S BUILD SOMETHING

YOUR NEXT REACT PROJECT
DESERVES SENIOR ENGINEERS.

Tell us what you're building — we'll review it, give you honest technical feedback and scope a fixed-price or retainer engagement that fits your budget.

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