React Agency
React is a JavaScript library created by Facebook and released as open source in 2015. Netflix, Airbnb and Meta run it in production for their web interfaces, both in their internal tools and consumer products.



Build your application with React
React is a library created by Facebook and released as open source in 2015. Netflix, Airbnb and Meta have been running it in production for years, which gives you a solid longevity guarantee when you start a project today.
The core idea: you break the interface into reusable components. A button, a table or a complex form become building blocks you compose once and maintain in a single place. For the team, this translates into real speed gains on projects that last.
For the user, rendering is fast: you navigate between views without reloading the page, and only the zones that change are updated. The experience gets close to a native app.
React solutions adapted to each context
A startup wants to develop a performant business tool for its sales teams.
The solution provided: a React application with interactive dashboard, lead management, real-time data visualization and offline synchronization.
An institution wants to modernize its internal portal with a fluid and intuitive interface.
The solution provided: a complete React redesign with reusable components, accessibility compliance and integration with existing systems.
An SME wants to create a SaaS software for its industry.
The solution provided: a complete React application with authentication, multi-tenant management, customizable dashboards and RESTful API.
An association needs a modern and reactive event management platform.
The solution provided: a React interface with interactive calendar, online registration, real-time notifications and personalized member portal.
Our standards for every React project we develop.
Performance
Bundle optimization, lazy loading, intelligent memoization.
Code quality
TypeScript, unit tests, ESLint, strict conventions.
Simplified Maintenance
Modular architecture, documented components, Storybook.
Scalability
Scalable structure designed to support your growth.
Continuous iterations
Short sprints, regular demos, real-time adjustments.
Transparent communication
A dedicated contact, regular updates, full visibility.
5 years of experience
Deep expertise in React and its ecosystem.
Ongoing support
Technical support, corrective maintenance and feature evolution.
Concrete custom development achievements

Identify levers to strengthen farm autonomy

An extranet to centralize all information and documentary resources

Offer the most accurate mortgage simulation on the market
Provide tools to master energy consumption
Carry out genomic sequencing projects

Identify levers to strengthen farm autonomy

An extranet to centralize all information and documentary resources

Offer the most accurate mortgage simulation on the market
Provide tools to master energy consumption
Carry out genomic sequencing projects

Identify levers to strengthen farm autonomy

An extranet to centralize all information and documentary resources

Offer the most accurate mortgage simulation on the market
Provide tools to master energy consumption
Carry out genomic sequencing projects
How we use React on your projects.
We start from the design, spot the elements that repeat (buttons, inputs, cards, tables) and isolate them into documented components. Each one has a clear behaviour, well-defined props and tests where relevant. When the UI needs to change, we edit one place, not forty.
Client-side rendering lets you switch views without reloading, but it's not always the right answer. On public pages, we lean on server-side or static rendering (Next.js) for SEO and first-paint speed. Inside the app itself, we stay client-side for reactivity.
The Virtual DOM does part of the work, not all of it. We watch the bundle size, lazy-load what isn't needed on first paint and memoize expensive computations. On long lists, we switch to virtualisation (react-window) to keep the DOM from growing without bounds.
What React actually brings to your project.
React lets you ship interfaces that behave like native apps: instant navigation, targeted updates, responsive interactions. It's especially noticeable on business tools used all day long.
The ecosystem around React is mature. For data fetching (React Query, SWR), forms (React Hook Form), or ready-made components (MUI, Mantine), there are proven libraries that spare you from reinventing the wheel.
The same React know-how carries over to mobile through React Native. A team that masters the web can ship iOS and Android apps without starting over.
What you get from React, in practice:
A broad community and a library ecosystem that stays active
Used in production by Meta, Netflix, Airbnb and many others
React Native to cover iOS and Android with the same logic
Clear official documentation and strong debugging tools
Reusable components that speed up future changes
Ready to get started?
From scoping to prototype, to AI integration.
We support your business software projects from start to finish.