React JS agency for web apps and custom interfaces

We build React applications for teams and customers: modern business interfaces, SaaS products and web platforms designed to evolve.

Your React project

Tell us what you need

Three questions to prepare a useful conversation.

Question 1/3

What would you like to build?
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Services

Our React JS development services

Not promises. Results.

API integration and front-end architecture

We connect your React app to APIs and services, with TypeScript, data typing, authentication and error handling. This front-end solution keeps code readable and the architecture scalable as the product grows.

React audit, redesign and migration

Already running a React app? We audit its code, performance and accessibility, then plan its improvement or migration in steps without interrupting users.

Components and design systems

Starting from your Figma designs, our team creates reusable React components: buttons, forms and tables. A documented design system guides developers and improves collaboration between design and development.

Business apps and SaaS platforms

We build React applications for your processes: dashboards, forms, data management and customer spaces. This web development approach integrates each interface with your management tool or existing software.

Building or improving an interface?

Tell us about your needs, team and constraints: our support defines a React solution and the basis for a quote.

Objective

Why choose React for your application?

1

Reusable interface building blocks

React is an open-source JavaScript library for building web interfaces. Its components share logic across pages and dashboards without rebuilding every screen.

2

Interactions shaped around work

Forms, dashboards, search and live data: React suits complex applications whose interface changes as users interact. State management keeps the experience responsive without unnecessary complexity.

3

A stack that fits your context

React works with an existing API, a Node backend or a headless platform. For a website where SEO matters, the Next.js framework uses server-side rendering (SSR); React Native serves a distinct mobile project.

4

A foundation for teamwork

The React ecosystem, TypeScript and tests make collaboration between developers easier. A documented codebase helps companies retain skills and evolve an application over time. If your product already uses Vue, we assess whether a migration is worthwhile.

Maintenance

Take over and evolve your React app

Our specialists examine source code, the complexity of user journeys and production behavior before proposing a measurable improvement plan.

Technical audit

Component structure, dependencies, technical debt and tests: a prioritized assessment to decide what to fix.

Step-by-step migration

We take over an existing app module by module, with testing and deployment planned around project constraints.

Support and maintenance

Fixes, updates and new features: your team gets a documented React codebase with ongoing support.

Interfaces

Which React approach fits your needs?

Web app or SaaS

An interactive React app for internal tools, dashboards and browser-based products.

Website and SEO with Next.js

A React framework with server rendering when public pages need to be visible to search engines.

Mobile project with React Native

A technology from the React ecosystem for mobile apps; its design and costs are assessed separately.

Services

How do you choose a React agency for your project?

A team with product and engineering skills

Our specialists connect discovery, design and React development to turn business needs into usable journeys.

Readable, tested code

Our team uses TypeScript, tests for critical journeys and code reviews to support software quality and future changes.

Accessible web experiences

Keyboard navigation, contrast, loading states and performance are considered as React components are built.

Support after launch

Our support includes component documentation, shared technical decisions and, where needed, team training so you can take ownership of the project.

View all services

React for a business product

See how an existing React interface is adapted for Toloxa’s B2B clients.

Contact

Why us

How do you choose a React agency for your project?

React case study
Toloxa
ReactVitePython
Case study · Toloxa

A React interface adapted for B2B embedding

Toloxa had an artificial intelligence assistant with a React/Vite interface and Python backend. The project aims to make it embeddable on B2B customer sites, with sessions bound to approved domains and the existing journey retained in an iframe.

React/Vite Existing interface

B2B Embedded integration

E2E Tested journeys

Method

Our React development process

Not promises. Results.

1

Scope the need

We clarify goals, users, data and constraints before defining a React development plan. This scope also informs the quote.

2

Design the interfaces

From Figma or the existing product, we define journeys, components and design system rules.

3

Develop and integrate

We build React features in steps, connect APIs and test key scenarios with your team. Each sprint gives us concrete feedback.

4

Review and launch

We check accessibility, performance and error cases, then prepare the deployment plan and documentation.

Is your React app already live?

A technical assessment helps prioritize improvements to quality, security and user experience.

FAQ

Questions about our React agency

React suits web apps that need an interactive interface, such as SaaS products, dashboards, business tools and customer spaces. For mainly editorial websites, we first assess CMS, SEO and server rendering needs.