NextJS Development Companies in Paris

Conquer the digital world and boost your online business!

With over 10 years of experience in IT and CII certified, Josh Digital is among the best next-generation French TECH Agencies, supported by BPI FRANCE, BNP PARIBAS & the PARIS IDF Chamber of Commerce.

Based on an agile, immersive, collaborative, and responsible approach, we provide high-level digital expertise thanks to our team passionate about new technologies, for the custom development of digital applications in continuous improvement:

- Business applications: ERP / CRM / Extranet / Intranet

- Mobile / tablet applications (iOS & Android)

- E-Commerce / Marketplace platforms

- Webservices

- IoT

Composed of creative & technical talents with fullstack skills and solid experience (UX/UI Design & IT Development), we aim to be a true extension of your team, adapting to your needs in a collaborative framework, and fully engaging in your project.

Josh Digital, in numbers, is:

+20 Employees

+95 Clients

+300 Digital Projects

+50 Mobile Applications

+30 Business Applications

Today, we collaborate with prestigious large companies and innovative startups, such as: BNP Paribas, Nicolas Feuillatte, SNCF, ISS France, Welkeys, Arioneo, Samboat... And many others who have chosen to trust us!

Always seeking innovation, we advise our clients on technological choices and the implementation of their digital projects.

Have a Tech Project to entrust to us? Gain digital productivity and competitiveness now!

#WECRETTECH

#WEAREJOSH

Since 2014, Gradiweb has been supporting major E-commerce players in the design, development, and optimization of high-end Shopify sites.

Based in western Paris, our team of Shopify experts implements its know-how in user experience, graphic design, and feature integration to build high-performance sales tools perfectly tailored to needs. Nothing is left to chance; we ensure that the site is SEO-friendly, mobile-first, and fully configurable.

Founded in 2012, our agency JULOA is a Toulouse-based company specializing in Mobile and Web development.

A unique provider for the development of websites, mobile applications, and for the realization of IT projects. We offer several areas of expertise. With a team composed of web developers and project managers, our agency is notably organized around two business sectors:

Development of Mobile Applications and Websites:

- As a WebAgency: from idea to completion, we manage the entire project with innovative solutions.

- As a Subcontractor: we bring our technical expertise in IT development for the realization of projects with large and small companies.

Software and Website Publishing:

In parallel with our development activity, we are also software/application publishers ourselves. This allows us to better understand issues by placing ourselves on the client's side. We also operate several websites including Mariage31.com, Guide du mariage en Midi-Pyrénées, NosRiverains.com proximity communication software for businesses and communities.

Nous sommes experts dans le développement d'applications Web, mobiles et IA sur mesure. Spécialistes de l’écosystème JavaScript, nous développons vos projets en React, React Native et autres frameworks modernes, du prototype à la mise en ligne.

We’re a web development studio that helps startups and brands turn ideas into powerful, scalable web apps.

Whether you're launching an MVP or need a reliable tech team to grow your digital product, we bring the skills to design, build, and deploy fast, responsive, and maintainable solutions.

Our stack? Next.js, React, Tailwind CSS, Node.js — and whatever it takes to ship clean, production-ready code.

We work lean, iterate fast, and always aim for quality over quantity. Let's build something that lasts.

nuances designs custom digital solutions, from product discovery to the extra mile. Specializing in e-commerce and SaaS, we combine technological mastery, intuitive design, product strategy, and continuous optimization (CRO) to transform your projects into impactful and profitable experiences.

What sets us apart:

We have no sales representatives.

We never have.

And we never will.

99% of our revenue comes exclusively from client recommendations and our reputation, which are enough to fill our schedule.

Your future recommendation of our services is our primary criterion for measuring the success of our collaboration.

Know-how: we take ownership of your challenges to make them intimately ours

Business-first: technology only makes sense when it serves the business

Ultra-specialized team: small, responsive team, direct communication, controlled deadlines

Extra-mile commitment: your success is our long-term responsibility

E-commerce & SaaS focus: proven expertise on Shopify platforms, marketplaces, and SaaS applications

Data-driven culture: decisions and iterations guided by analytics and real feedback.

Our potential areas of action:

UI/UX Design & Branding

• Creation of visual identities, Branding & brand platform
• Logo, graphic charter, guidelines.
• Figma wireframes & mockups
• Product Design
• UI/UX conception
• User journeys, interactive prototypes
• UX Research

Technology

• Front-end and Shopify & Shopify+ integration
• Full-stack development (Node.js, React), third-party APIs, back-office, CI/CD, Test Automation
• AI Model training & LLM integration, agent design & development

Product Strategy, CRO & Data

• Product scoping, backlog & user stories, MVP and iterations based on user feedback
• Analytics audit (GA4, Hotjar…), tracking, A/B tests, statistical analyses and conversion optimization
• Project management, QA, empowerment of client teams

We don't just deliver a project.

We create complete digital experiences: e-commerce platforms, mobile apps, web apps, and custom solutions.

At Kreativ Konception, every solution is designed with a user-first approach, optimized for performance, and built to generate real impact on your business.

From prototype to launch, we build scalable solutions ready to evolve with your growth.

Fewer technical constraints, more concrete results.

Appvelvet est un studio de développement d'applications web & mobiles. Les applications sont développées en code natif pour iOS et Android.

Fondé en 2014, le studio privilégie une approche créative et flexible durant le processus de conception des applications.