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Custom Web Application Development

Digitize your activity with an application tailored for you

What this service includes

1

Functional analysis and in-depth UX design

2

Scalable and maintainable technical architecture

3

Intuitive and modern user interface

4

Secure API and performant database

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Authentication and user role management

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Automated testing and continuous deployment

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Technical documentation and team training

Why develop a custom web application?

Generic tools never perfectly meet your business needs. A custom web application is specifically designed for your activity: it automates your processes, centralizes your data and offers your teams and clients a fluid and efficient experience.

Whether you're an SME wanting to digitize internal management, a professional needing a client space, or an association seeking to manage members — custom development is the lasting solution.

My development process

Creating a performant web application requires method and rigor. Here's my approach:

  • Discovery phase — I deeply analyze your current processes, pain points and objectives to define the application's functional scope.
  • UX/UI design — Wireframes, interactive prototypes and final design are validated before writing a single line of code.
  • Iterative development — Development happens in short sprints, with regular demos to validate progress and adjust priorities.
  • Testing and quality — Unit tests, integration tests and user tests guarantee application reliability.
  • Deployment and training — Secure production deployment, documentation and team training.

Common use cases

Here are examples of web applications I've developed or can create for you:

  • Online booking platform with schedule management
  • Activity tracking dashboard with key indicators
  • Secure client space with document management
  • Collaborative project management tool
  • Inventory and billing management system
  • Intranet portal for distributed teams

Modern and proven technical stack

I rely on a robust and performant technological ecosystem:

  • React / Next.js — Reactive and performant user interface with server rendering.
  • TypeScript — Typed code for better maintainability and fewer bugs.
  • Supabase / PostgreSQL — Powerful relational database with integrated authentication.
  • Vercel — Automated deployment with automatic scaling.
  • Tailwind CSS — Consistent and responsive interfaces in record time.

Security and performance

Security is never optional. Every application I develop integrates security best practices: robust authentication, sensitive data encryption, protection against SQL and XSS injections, fine-grained user permission management and GDPR compliance.

On the performance side, the architecture is designed to support scaling: intelligent caching, query optimization and scalable cloud infrastructure.

End-to-end support

My role doesn't stop at code delivery. I support you in strategic thinking, choosing priority features and evolving your application over time. A successful digital project is one that grows with your business.

Indicative pricing

From €5,000

Every project is unique. The final price depends on complexity, content volume, and desired features. Request a free personalized quote.

Get a free quote

Frequently asked questions

What's the difference between a website and a web application?+
A website presents information statically or semi-dynamically. A web application allows users to interact, create, modify and manage data. Examples of web applications: project management tool, booking platform, CRM, analytical dashboard. If your users need to log in and perform actions, you need a web application.
How long does web application development take?+
Duration varies according to complexity. An MVP (minimum viable product) can be delivered in 2 to 3 months. A complete application with advanced features requires 4 to 8 months. I always recommend an iterative approach: deliver a functional MVP quickly, then enrich features according to user feedback.
What technologies do you use for web applications?+
I primarily develop with React and Next.js for the front-end, Node.js for the back-end, and Supabase or PostgreSQL for the database. This modern stack guarantees excellent performance, facilitated maintenance and optimal scalability to support your business growth.
Do you provide maintenance after launch?+
Yes, I offer maintenance contracts including security updates, bug fixes, functional evolutions and performance monitoring. You can also opt for occasional support according to your needs.

Ready to start your project?

Let's discuss your needs and build the ideal solution for your business together. First consultation free and no commitment.

Discuss my application project