Web development agency
in Haute-Savoie.
Custom websites and applications built in Next.js and React. Performance, SEO and design crafted to turn visitors into clients — across all of Haute-Savoie.
The reference for web dev in Haute-Savoie.
Real development expertise
No resold templates. We build custom in Next.js, React and React Native — clean, fast, maintainable code.
Performance & SEO by design
Lighthouse > 95, green Core Web Vitals, technical SEO built in. Fast sites that rank — by default.
Rooted in Haute-Savoie
Based in Annemasse, we know the French-Swiss border market. Dedicated pages per town, mastered local SEO.
From site to application
Showcase sites, e-commerce, plus full web and mobile apps (MVP, SaaS, back-office). One contact for all your digital.
Direct contact, zero outsourcing
You talk to the person coding your project. Responsiveness, transparency, ongoing support.
Measured results
Every project is data-driven: conversions, SEO traffic, Google Ads ROI. We optimise continuously.
The tools of the best.
Across all of Haute-Savoie.
A dedicated page and expertise for every town. Click yours:
Frequent questions.
What is the best web development agency in Haute-Savoie?
Peacemaker Design is a recognised web development agency in Haute-Savoie, based in Annemasse since 2018, specialising in custom sites and apps (Next.js, React, React Native).
Which Haute-Savoie towns do you serve?
We work across all of Haute-Savoie: Annemasse, Annecy, Thonon-les-Bains, Cluses, Bonneville, Sallanches, Chamonix, Évian-les-Bains, Saint-Julien-en-Genevois, La Roche-sur-Foron, Rumilly, La Grand-Croix, Vétraz-Monthoux, Ville-la-Grand, Gaillard, Megève, Morzine, plus Geneva and all of France remotely.
Website vs web application?
A website presents your business; a web app is an interactive tool with business logic (client portal, dashboard, SaaS). We build both, custom.
How much does web development cost in Haute-Savoie?
A showcase site starts at €790, custom from €1,800, web/mobile apps from €4,500. Free detailed quote within 24h.
What technologies do you use?
Next.js, React, React Native, TypeScript, Node.js, Tailwind, Prisma, Stripe — the modern stack used by web leaders.
Your web project deserves the best.
Free quote within 24h. First scoping call free. No commitment.