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React development: interfaces and web applications

React is a JavaScript library created by Meta to build interfaces: the screen updates instantly when the user acts, without reloading the page. It powers many client areas, dashboards and business tools. Its ecosystem is huge, which makes hiring and handing the code over to other developers easier. We pair it with a server (Node.js, PHP, Python) depending on your existing systems, and with Next.js when SEO matters.

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Good fit

When to choose React?

  • A rich application

    Dashboards, filters, dynamic forms, drag and drop: users work without waiting.

  • A client area or extranet

    Order tracking, documents, messaging, account settings.

  • A team that will grow

    React is very widespread: it is easy to find developers to keep the project moving.

  • Sharing code with mobile

    With React Native, part of the logic can be reused for an iOS and Android app.

In all honesty

When it isn't the best choice

For a showcase website of a few pages, React alone makes the project heavier and can hurt SEO if poorly configured. A WordPress, Webflow or native PHP site will be simpler and faster to load.

Typical projects

What we build with React

Client area

Secure login, documents, tracking, notifications.

Dashboard

Real-time indicators, charts, exports.

Internal tool

Scheduling, stock management, field data entry.

Redesign of an old interface

Gradual replacement of jQuery or AngularJS screens with React components.

Existing code

Takeover, migration and maintenance

An ageing React application often accumulates outdated libraries and components that are hard to change. We audit the dependencies, update step by step, add tests on critical user journeys and document the code. We also migrate jQuery or AngularJS interfaces to React, screen by screen.

Services

Related services and budget

Web application development

from €3,500

Learn more : Web application development

UX / UI Design

from €890

Learn more : UX / UI Design

Maintenance & support

from €49 / month

Learn more : Maintenance & support

Indicative budget

Custom React web application from €3,500, Pro plan from €7,500. UX/UI design from €890. Maintenance from €49 per month.

Frequently asked questions

Frequently asked questions: React

A React-only application is harder for search engines to read. For pages that must be found on Google, we use Next.js, which produces readable pages on first load.

Both are excellent. React has the largest ecosystem; Vue.js is often simpler to integrate into an existing site. We choose based on your team and existing systems.

Yes: code and dependency audit, an upgrade plan, then maintenance and further development.

Whichever matches your existing systems: Node.js, PHP (Laravel, Symfony), Python or .NET. React only handles the interface.

A project in React?

New development or takeover of an existing system: let's talk. Free first call and detailed quote within 48 hours.

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