Single-page applications
App-like interfaces built with React and Vite, with routing through React Router or TanStack Router. Code splitting keeps the first screen quick to load even as the app grows to dozens of views.
React & TypeScript · Front-end engineering
React Development Services for Web Apps, Interfaces and Design Systems
Our React development services cover single-page apps, component libraries and new front ends for the backend you already run. The code is written in TypeScript, covered by tests, and organized so your own team can keep building on it.
Wix Legend Partner · 2,000+ projects since 2014 · 1,400+ client reviews
What are React development services?
React development services are the design and engineering of user interfaces with React, the JavaScript library behind a large share of modern web apps. Teams bring in React developers to build single-page apps and internal tools, create shared component libraries, put a modern interface on an existing API, or replace an aging jQuery or AngularJS front end.
React or Next.js? If your pages need to rank in Google, such as a marketing site, store or blog, you want React rendered on the server, which is what our Next.js development services provide. This page covers interfaces where search doesn't matter: apps behind a login, admin tools, and embeddable widgets.
React web app development: what we build
Component libraries and design systems
A shared set of accessible, documented components, from buttons to data tables, built from your Figma files. Each one is catalogued in Storybook, versioned, and published as a private npm package so every product uses the same UI.
Data-heavy interfaces and admin panels
Tables that sort, filter and virtualize thousands of rows, bulk actions, role-based views and inline editing. For reporting and analytics builds specifically, see our custom dashboard development service.
React front ends for existing backends
Your backend stays where it is: Django, Laravel, Rails, .NET, Node.js, Firebase or a commerce API. We build the React layer against your REST or GraphQL endpoints, generating typed API clients from your OpenAPI schema when one exists.
Legacy front-end migrations
Moving off jQuery, AngularJS (end-of-life since 2021), Backbone or an unmaintained Create React App setup. React can mount into one part of an existing page, so we migrate screen by screen while the old UI keeps running. No feature freeze, no big-bang rewrite.
TypeScript adoption
New code is written in strict TypeScript. For JavaScript codebases, we add types file by file, so mistakes show up in the editor instead of in production.
State management that fits the app
Server data with TanStack Query, shared client state with Zustand or Redux Toolkit, and forms with React Hook Form and Zod validation. We choose the lightest tool that solves the problem instead of one library for everything.
Testing and quality checks
Component tests with Vitest and React Testing Library, end-to-end tests with Playwright, and visual review in Storybook, all running automatically on every pull request.
Performance and accessibility fixes
Profiling slow renders with React DevTools, turning on React Compiler for automatic memoization where it fits, trimming bundle size, and auditing against WCAG 2.2 AA so keyboard and screen-reader users can use every screen.
Signs you need React developers
- Backend engineers are building your UI because there's no front-end specialist on the team.
- Every product or portal looks slightly different because there's no shared component library.
- Your backend works, but the interface on top is slow, dated or still built on jQuery.
- Your app started on Create React App, which the React team deprecated in February 2025, and every upgrade breaks something.
- The same bugs keep coming back because the front end has no automated tests.
- You need an embeddable widget, like a calculator, quote form or configurator, that drops into any website.
Why choose Wix Engine as your React JS development company
We build for handover
Your team will maintain this code after the project, so we write it that way: strict TypeScript, a predictable folder structure, Storybook docs and a README that explains setup, scripts and deployment.
Design and engineering under one roof
Our UI/UX designers work in Figma alongside our developers, so spacing, states and design tokens carry into components without guesswork.
We work inside your process
Your Git host, ticket tracker, branching strategy and code review rules. We open pull requests against your repository and follow your conventions.
Breadth when the front end meets everything else
2,000+ projects since 2014 and 50+ technologies. That matters when your React app has to talk to a payment provider, a CRM or an old SOAP service.
Clear communication
Email replies within 2–4 business hours, a written proposal within 24 hours of your call, and an NDA on request.
How a React engagement works
- 01
Free 30-minute call
What the app does, who uses it, what backend exists, and where the current front end hurts.
- 02
Code and API review
For existing projects, we read the repository under NDA, checking dependencies, structure and test coverage, so the estimate reflects reality.
- 03
Proposal within 24 hours of the call
Screens and components in scope, architecture, testing plan, timeline, and a fixed price or estimate.
- 04
Component inventory
Shared components, data flows and state are mapped before the first sprint, which keeps the codebase consistent.
- 05
Sprints with demos
Working software on a staging URL at every demo, with tests running in CI from day one.
- 06
Handover or ongoing support
Documentation and a walkthrough for your team, or a developer who stays on through a monthly retainer.
Tools & technologies
core
- React
- TypeScript
- Vite
- React Router
- TanStack Router
state & data
- TanStack Query
- Zustand
- Redux Toolkit
- React Hook Form
- Zod
- Apollo Client (GraphQL)
ui
- Tailwind CSS
- shadcn/ui
- Radix UI
- MUI
- Storybook
- Motion
tables & charts
- TanStack Table
- AG Grid
- Recharts
testing
- Vitest
- React Testing Library
- Playwright
- Mock Service Worker
tooling
- ESLint
- Prettier
- GitHub Actions
- Sentry
Work
React in production
e-commerce for a Canadian water-filtration brandPurely Solutions
Purely Solutions runs on Next.js, which is built on React. Its product configurators, financing at checkout and live postal-code water-quality lookup are the kind of interactive, stateful interface work this service covers.
Read the Purely Solutions case study
How much do React development services cost?
React projects with Wix Engine start from $3,000. An embeddable widget or a small internal tool sits at the lower end. Full applications, design systems and legacy migrations cost more.
What affects the price:
- Screens and states each view needs loading, empty, error and permission states, not just the happy path.
- Backend readiness a documented, stable API is far quicker to build against than one still being designed.
- Data complexity real-time updates, large datasets and offline support add engineering time.
- Migration scope how much legacy code exists and how much has to keep running during the move.
- Testing and accessibility targets agreed coverage levels and WCAG requirements are scoped upfront.
Choose a fixed-price project, a monthly retainer, or hourly work at $45/hour (minimum 40-hour block) for fixes and reviews. If you need someone working inside your sprints, you can also hire a dedicated React developer.
Share your designs or repository and you'll get an exact estimate within 48 hours.
FAQ
Frequently asked questions
Should I use React or Next.js for my project?
Use plain React when your app sits behind a login and search engines never need to see it: dashboards, internal tools, admin panels. Use Next.js when pages must rank or load fast for first-time visitors, like marketing sites and stores. Both are React, so skills and components carry across if your needs change later.
How much does it cost to hire a React development company?
React projects with Wix Engine start from $3,000. Price depends on the number of screens, how ready your backend is, data complexity and any legacy code being replaced. We offer fixed-price projects, monthly retainers and hourly work, and we send an exact estimate within 48 hours of seeing your requirements.
Can you add React to an existing website or app?
Yes. React can render into a single element on an existing page, so you can add one interactive feature, like a calculator or configurator, without rebuilding anything else. The same technique lets us migrate a legacy front end gradually, one screen at a time, while the rest keeps working.
Can you migrate our jQuery or AngularJS app to React?
Yes. We map the current screens and logic, then replace them one at a time, with old and new code running side by side until the last screen moves over. Your team keeps shipping features during the migration, and each step is tested before it goes live.
Is Create React App still supported?
No. The React team deprecated Create React App in February 2025 and now points developers to frameworks or build tools like Vite. Moving a CRA app to Vite usually means a new config, relocating index.html, and renaming REACT_APP_ environment variables. If the app needs search visibility, Next.js is the other path.
Do you write tests for React code?
Yes, on every project. Component tests use Vitest and React Testing Library, critical user journeys get Playwright end-to-end tests, and everything runs automatically on each pull request. We agree on coverage targets upfront, so testing is scoped and priced rather than skipped when deadlines get tight.
Do you build React Native mobile apps too?
Yes. React Native uses the same component model and TypeScript skills as React for the web, and some business logic can be shared between your web and mobile apps. See our mobile app development service for iOS and Android projects.
Get a React front end your team can keep building on
Book a free 30-minute call and walk us through your app, designs or repository. You'll get an honest assessment and a detailed proposal within 24 hours.
Sohaib Mehmood
Owner & CEO
Wix Legend Partner · 2,000+ projects since 2014 · 1,400+ client reviews