How long does a custom web application take to build?

Most web applications take four to ten weeks from discovery to launch. A content-driven site with a few integrations lands near four weeks. A product with user accounts, payments and an admin area usually needs eight to ten. We give you a fixed timeline after the discovery week, and you see working software every week until launch.

Why build with Next.js instead of plain React or WordPress?

Next.js gives you server rendering, static pages and API routes in one framework, which means faster loads and better search rankings than a plain React app. WordPress is the right call for content sites that editors update daily. When your product has logins, dashboards or custom logic, Next.js with a Node.js backend is the better foundation.

Do you take over web applications another team built?

Yes, and it starts with a paid code audit. We read the codebase, check the database and deployment setup, and send you a written report with risks ranked by cost. From there we either stabilize what exists or plan a staged rebuild, and you keep running the business while we work in the background.

Who owns the code and where does it run?

You own the code, the repository and every account from day one. We build on GitHub under your organization and deploy with Docker to your cloud provider or to a server we manage for you on DigitalOcean. There is no lock-in: any developer who knows TypeScript can pick the project up from the documentation we leave.

How do you keep the application fast and accessible after launch?

Speed and accessibility are checked before every release, not once at launch. Lighthouse runs in the CI pipeline and blocks merges that drop Core Web Vitals, and we test keyboard navigation and screen reader labels on new screens. If you want ongoing care, a maintenance retainer covers updates, monitoring and small improvements each month.

Web & Mobile

Web application development with Next.js and Node.js

You get a web application that loads in under two seconds, passes Core Web Vitals, and works for every visitor, including the ones using a keyboard or a screen reader. We build in TypeScript with strict mode on, write tests for the parts that matter, and deploy to infrastructure we run. Ten years of production apps for clients in Denmark, the US, the UK and the UAE stand behind it.

Get an estimatefrom $8,000 · 4 weeks

Sound familiar?

Your current site is slow and it shows

Visitors leave before the page finishes loading, Google scores you poorly, and every campaign you run pays for traffic that bounces. A slow site quietly taxes everything else you do.

The last agency left you a mess

Nobody on your side can explain the code, deployments happen by hand, and every small change takes a week to ship. You are paying for fear instead of progress.

Your app cannot keep up with the business

New features bolt onto an old foundation, the database strains under real traffic, and the team spends more time patching than building. Growth is stuck waiting on the software.

What you get

Next.js App Router frontend
Node.js or NestJS API
PostgreSQL schema and migrations
Authentication and roles
Automated test suite
CI/CD pipeline
Docker deployment
Performance and SEO audit
Handover documentation

Stack and tools

Next.js
React
TypeScript
Node.js
NestJS
PostgreSQL
Prisma
Tailwind CSS
Docker
GitHub Actions
Playwright
Sentry

How we do it

1
Discovery and scope
We map the users, the flows and the integrations in a one week discovery, then write acceptance criteria you can check against. Fixed price, no surprises later.
2
Design and architecture
Wireframes and a clickable prototype come first, followed by the data model, API contracts and infrastructure plan. You approve the shape of the product before code starts.
3
Build in weekly sprints
Every week ships working software to a staging URL you can click through. TypeScript strict mode, code review and automated tests gate every merge, including the AI-assisted ones.
4
Launch and measure
We deploy to Docker on your cloud or ours, wire up monitoring and analytics, and run a Core Web Vitals check before the domain goes live. Then we watch it.

Starting at

from $8,000

Typical timeline 4 weeks. Discovery week included. Larger platforms are scoped after discovery.

Get an exact quote

Related work

DiFacto

Construction SaaS

difacto.dk

Construction SaaS

Denmark

AI invoice control for Danish construction companies

A GenAI SaaS that reads supplier invoices in any layout, pulls out line items and prices, and checks them against quotes and price lists.

Next.js
React
Node.js
REST APIs

A European product company

HR software

A European product company

HR software

Europe

HRMS SaaS platform with admin and employee portals

A multi-tenant HR management system with separate admin and employee portals, JWT authentication and role-based access, shipped with CI/CD and production monitoring.

Next.js
NestJS
Node.js
TypeScript

Bankful (eMerchantBroker LLC)

Fintech and payments

bankful.com

Fintech and payments

United States

One payment gateway for five e-commerce platforms

A payment gateway for high-risk merchants, served from one Node.js codebase across Shopify, WooCommerce, Magento, Wix and BigCommerce, with fraud and chargeback tooling.

Node.js
Express
MongoDB
Shopify

Web Development: questions people ask

Often paired with

Let's scope your web development project.

Tell us what you are building or what is slowing you down. We reply within one business day.

Start a project WhatsApp

Sound familiar?

Your current site is slow and it shows

The last agency left you a mess

Your app cannot keep up with the business

What you get

How we do it

Discovery and scope

Design and architecture

Build in weekly sprints

Launch and measure

Related work

AI invoice control for Danish construction companies

HRMS SaaS platform with admin and employee portals

One payment gateway for five e-commerce platforms

Web Development: questions people ask

Further reading

Often paired with

API & Backend

UI/UX Design

Cloud & DevOps

Let's scope your web development project.