Custom frontend architecture
We structure React or Next.js builds around reusable components, routing, data needs, responsive rules and a clean path for future iteration.
Service · React/Next.js Development
React and Next.js development for custom frontends and product-like websites.
99 Francs® builds React and Next.js websites, MVP frontends, SaaS marketing systems and interactive product surfaces when the site needs more control than Framer or Webflow can reasonably provide.
Fixed USD price, paid per phase: custom React/Next.js frontends from $5,000. No upfront payment.
150+
shipped projects
$32M+
raised by clients
9,000+
tasks delivered
Direct answer
99 Francs provides React and Next.js development services for custom web surfaces that need control, speed and product logic.
The service covers frontend architecture, Next.js pages, reusable components, CMS integration, interactive states, forms, metadata, structured data, responsive QA and launch support for focused web products.
What you get
Development that keeps the website fast, editable and faithful to the design.
The build should not flatten the design or create a maintenance problem. We keep implementation decisions tied to performance, content ownership, responsive behavior and the launch goal.
Product-like web surfaces
We build dashboards, interactive landing pages, calculators, forms, demos, onboarding previews and MVP frontends that need more than static pages.
CMS and integration planning
When content or data matters, we plan the right source: Payload, headless CMS, API routes, analytics, forms or external services.
Performance and SEO foundation
The implementation accounts for metadata, crawlable content, page speed, image handling, schema, accessibility and stable responsive rendering.
What it costs
Fixed USD price, paid per phase — never upfront.
Custom frontend (React/Next.js)
Custom logic, integrations, CMS connections and product-like states — scoped and priced phase by phase.
from $5,000
Every project runs in fixed-price phases with no deposit — you pay only once a phase is delivered and working.
Best fit
Use this service when the website has to become a real launch surface, not just a mockup.
No-code tools are starting to limit the site
React/Next.js is the better path when the website needs custom behavior, deeper integrations or product states that Framer and Webflow should not own.
The site is part marketing and part product
Use React/Next.js for SaaS websites, AI demos, dashboards, calculators, gated flows, interactive tools and MVP surfaces that need engineering control.
Performance and technical SEO matter
Next.js gives more control over rendering, metadata, routing, structured data, image handling and the technical details that influence crawlability.
The team needs maintainable code
We build around clear components, content models and implementation boundaries so the next developer can extend the site without rewriting it.
Process
From build scope to live website.
The process keeps design, content, CMS, integrations, QA and launch readiness in one line so the final site is easier to ship and maintain.
Scope the frontend
We review the design, product states, content sources, integrations, analytics, CMS needs, hosting assumptions and launch risks.
Plan components and data
We define routes, sections, components, data shapes, CMS boundaries, API assumptions, responsive behavior and SEO requirements.
Build the Next.js surface
We implement the pages, components, interactions, forms, structured data, metadata, CMS connections and frontend states needed for launch.
Test and hand off
We run checks for responsive layout, accessibility basics, links, forms, metadata, performance, build stability and maintenance notes.
Related work
Product and SaaS work that benefits from custom frontend control.
React and Next.js builds are strongest when the website behaves more like a product surface than a brochure: clear states, interactions, data and technical SEO.
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Guides
Further reading
Engineering8 min read
AI-Written Code: What Stops It Shipping Bugs
We use AI coding assistants on client sites and on our own apps. Writing a change got cheap; reading it did not. These are the checks we put between an assistant's draft and production, taken from the repository that runs this site, and the one rule that decides whether a check is worth having.
Engineering8 min read
One URL, Two Formats: How Our Site Serves Markdown to AI Agents
Every page of 99francs.agency is served as clean Markdown to any client that asks — same URL, one Accept header, about a tenth of the bytes. Here is the Next.js setup behind it: the proxy rewrite, the converter route, llms.txt — and the six-week bug that quietly served our homepage to every AI agent while every browser test passed.
React/Next build
If the website has custom logic, build it as a frontend system instead of forcing it into a visual builder.
React · Next.js · Frontend · CMS · MVP · Technical SEO
Start a React/Next build→React/Next.js development FAQ
Questions teams ask before choosing a custom frontend build.
With 99 Francs, a custom React/Next.js frontend starts from $5,000. What moves the price is the number of routes and components, the depth of CMS or API integrations, and any custom product logic. Work is scoped into fixed-price phases with no upfront payment — you pay only once a phase is delivered and working. See how we work for the full model.
99 Francs builds custom frontends, SaaS websites, interactive landing pages, MVP product surfaces, CMS-driven websites, dashboards and launch-ready web experiences using React and Next.js.
Next.js is better when the site needs custom product logic, integrations, performance control, structured routing, application-like states, complex CMS needs or engineering ownership.
Yes. When the scope needs a CMS, we can plan and build with Payload or another headless CMS so content models, pages and frontend components work together.
This service is frontend-led. We can work with APIs, lightweight routes, CMS systems and integrations, but large backend platforms should be scoped with a backend engineering team.
React/Next.js is clearer for SEO because it names the technology buyers search for. Custom development still belongs in the copy, but the page intent should stay specific. For a broader comparison, see web development services.