Both tracks · Cloud, web and apps

Web application development with Next.js and React

The screen your customers judge you by, built with the same care as the system behind it.

Overview

ByteKnot Labs builds the web applications customers and teams use every day: SaaS front ends, customer portals, admin dashboards and marketing sites on Next.js, React and TypeScript, with authentication, billing, accessibility and search performance built in from the start, hosted on Vercel, Google Cloud or Firebase.

Next.js · React · TypeScript

You probably need this if

Your product works, but the interface makes it feel older than it is.
Pages are slow and your search rankings show it.
Your marketing site is invisible to ChatGPT, Perplexity and AI Overviews.
Your back office is a pile of admin screens nobody designed.

Approach

How we build it.

01
Click it before we build it
Wireframes first, then an interface you can click before product code is written. Or we work from your designer's Figma files.
02
Fast by default
Server components, static rendering where possible and a performance budget checked in CI.
03
Readable by machines
Semantic HTML, structured data and clean metadata, so search engines and answer engines can read and cite it. This site is built the same way.
04
Accessible to everyone
Keyboard and screen-reader support to WCAG 2.2 AA, tested with real tools rather than assumed.

Deliverables

What you get.

Next.js, React and TypeScript application with a small design system
Authentication, billing, roles and multi-tenancy
Dashboards, portals and internal tools
SEO, structured data and Core Web Vitals
Accessibility to WCAG 2.2 AA
Product analytics with PostHog
Hosting and CI/CD on Vercel, Cloud Run or Firebase

Stack

What we build it with.

Chosen per project, benchmarked where it matters, and all of it something your team can run after us.

Next.js 16
React 19
TypeScript
Tailwind CSS 4
Playwright
Firebase
PostHog
Vercel

Why we use each one

Typical builds

What this looks like in practice.

SaaS front end
The product your customers log into, from sign-up to billing.
Customer portal
Self-service on top of a Spring Boot API.
Operations dashboard
The internal screens your team lives in all day.
Marketing site
Built to rank, to be cited by AI assistants and to convert.

Process

Discover, then Design, then Build, then Launch and hand over. A working build every week, on a staging environment in your cloud.

How a project runs

Terms

Code in your GitHub, infrastructure in your cloud, nothing trained on your data, and everything yours when we leave.

Read the terms

FAQ

Web applications: questions

Last reviewed 18 October 2026

Next.js or plain React: which do we need?

Next.js for anything public or content-heavy, where search, first-load speed and server rendering matter, and for most apps with their own backend. A plain React single-page app can be enough for an internal tool behind a login. Next.js is built on React, so the components carry over either way.

Can you move our existing site or app to Next.js?

Yes. We migrate page by page from Create React App, Gatsby, older Next.js versions or a server-rendered site, keeping URLs and redirects so search rankings carry over.

Who keeps the app patched after launch?

You can, with the runbook we hand over, or we can on a monthly retainer. Next.js and React publish security releases several times a year, and an app that is several versions behind is slower to patch.

Do you also design the interface?

Yes. Wireframes first, then a minimal interface you can click before product code is written. We can also work from your designer's Figma files.

Can the web app talk to our Java backend?

Yes. We build against your OpenAPI specification, or we build the Spring Boot backend alongside the web app as one project.

Will the site show up in AI search like ChatGPT and Perplexity?

We build for it: semantic HTML, structured data, direct-answer content and crawler access. Nobody can guarantee a citation, but a site machines can read is far more likely to get one.