How long does it take to develop a custom website?

The timeline depends on the complexity of the project: site structure, number of pages, visual design, etc. A showcase website can be created in a few weeks, while an e-commerce site or a business platform requires several months of work, including research, design, development, and user testing phases.

Why entrust your digital project to a web agency?

A web agency offers a comprehensive approach that goes beyond mere technical execution. It provides strategic insight, UX/UI design expertise, and creative graphic solutions, while ensuring robust and scalable development. With Bien-Fondé, every project benefits from thorough planning and full support, from conception to launch, followed by ongoing optimization.

How much does it cost to create a showcase website or an application?

The budget varies depending on the scope of the project, the desired features, and the level of support required. At a communication agency, the cost includes not only technical development but also strategic analysis, UX design, creative research, and the delivery of solutions perfectly tailored to your needs. Investing in a web agency ensures the quality, consistency, and longevity of your project.

Do you offer support after the website or app goes live?

Yes, we support our clients beyond the launch. Our agency handles technical maintenance, security updates, functional enhancements, and ongoing SEO performance optimization. Our role is to ensure that digital solutions remain effective and aligned with user needs over the long term.

Is it possible to update or enhance the website or application after its launch?

Absolutely. Our developments are modular and scalable, allowing the addition of new features, integration of external services, or UX/UI improvements. Our agency also provides ongoing support and regular updates to ensure your project remains efficient and up-to-date.

Web Agency

Websites & Applications

In a world where a brand’s first interaction with its audience often happens online, having a high-performing website or application has become essential. More than just a showcase, these tools serve as powerful drivers for communication, conversion, growth, and customer loyalty. As a web agency based in Paris, Bien-Fondé supports companies and organizations in the design and development of custom digital solutions, tailored to real user needs and aligned with strategic objectives.

Hnow-how.

Our expertise in designing digital websites and applications

Our web agency in Paris develops digital solutions tailored to a variety of contexts: brand communication, user experience optimization, deployment of business tools, and support for digital transformation. Each project is designed as a living platform that evolves alongside the company.

Website Creation and Redesign

A website is today’s main entry point to a brand (online presence). It should not only reflect the company’s visual identity, brand image, and messaging, but also provide a smooth and engaging user experience. We design custom showcase, institutional, corporate, and event websites that highlight the uniqueness of each organization.

Website redesign is also at the core of our expertise. It allows for modernizing interfaces, simplifying navigation that may have become complex, and improving technical performance, conversion rates, and traffic acquisition through SEO. Our agency works on both content — creating structured, search-engine-optimized materials — and design — developing modern, accessible, and responsive interfaces. A redesign is also an opportunity to redefine the strategic role of your website within the broader digital ecosystem.

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Mobile application

With the rise of mobile usage, an application is often the preferred channel to interact with clients or employees. Our web agency designs custom mobile applications, whether native (developed specifically for iOS or Android) or hybrid (compatible across multiple platforms).

From the very beginning, we integrate a custom user-centered approach to ensure simplicity and smooth navigation. Each feature is designed to meet a specific need, such as customer retention, easy access to a service, or improving internal productivity. Our agency also supports companies through the launch, update, and evolution phases of their applications.

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Interactive Installations

Because digital goes beyond traditional screens, we also design interactive installations, physical setups enhanced with digital technologies. Whether it is a showroom, cultural exhibition, museum, or event, these experiences create new ways for visitors to engage and interact.

Our custom installations combine interaction design, storytelling, and innovative technologies such as sensors, touch screens, and augmented reality. They bring immersive experiences to life, enhancing the relationship between the brand and its audience.

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Product Interfaces and Business Applications

Internal digital tools are often the overlooked part of the user experience. Our agency designs interfaces for professional applications and business software, created to simplify employees’ daily tasks. Our mission is to enhance operational efficiency through ergonomic, intuitive tools tailored to the specific needs of each team.

By focusing on clear user flows, information hierarchy, and consistent design, we help companies improve productivity and streamline their organizational processes.

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E-commerce websites

An e-commerce website is not just an online shop—it’s a powerful conversion tool. We create high-performance platforms that combine user-friendly design, SEO optimization, and marketing best practices.

Our e-commerce websites are designed to provide a seamless experience from browsing to checkout, including shopping carts and product pages. We implement solutions tailored to each client’s needs, whether open-source CMS, SaaS platforms, or custom-built solutions. We also advise on optimizing the shopping journey, highlighting products, and integrating performance tracking tools.

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Intranet

An intranet is a powerful tool for collaboration and employee engagement. We design ergonomic and modular intranets that make internal communication and information flow easier.

These web platforms (internal sites) help centralize documents, automate certain processes, and strengthen the sense of belonging. By integrating social, collaborative, and mobile features, we create dynamic tools that teams use and value every day.

Why choose Bien-Fondé as a web agency in Paris?

Our Methodology and Strengths in Digital Design and Web Strategy

Every web project (website, intranet, etc.) handled by Bien-Fondé Agency follows a proven methodology. We always start with a strategic immersion phase: understanding the market, analyzing target audiences, defining business objectives, and identifying technical requirements. Next, we organize collaborative workshops to co-create user journeys and lay the foundation for the site architecture.

Our UX/UI designers transform these directions into functional and visual mockups aligned with your brand guidelines, which are tested and refined before development. Finally, our developers implement and optimize the solutions according to best technical and security practices. This iterative approach ensures projects that are tailored, scalable, and sustainable.

A Web Agency in Paris Supporting Clients in Website and App Development

What sets Bien-Fondé Paris apart is its holistic vision of digital projects and its commitment to excellence. We don’t just deliver a product; we support our clients over the long term. Many businesses have seen tangible results: significant traffic growth, reduced bounce rates, improved conversion on e-commerce platforms, and increased internal satisfaction through more intuitive intranets.

Our support continues after launch with maintenance services, SEO optimization, technical updates, and team training. Choosing Bien-Fondé for your web development needs means partnering with a trusted ally to design and sustain your digital projects.

Client Testimonials

Our clients regularly express their satisfaction with our Paris web agency:

“Delighted to work with Bien-Fondé—the team is professional, responsive, and demanding. The agency successfully supported Weavenn in creating its website and managing its social media effectively within a short timeframe, all with a smile!”
— Didier Garcia, CFO, Weavenn

About the agency