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FIG 01 · React & Next.js Development

React and Next.js development company

Fast web apps, SaaS front ends, dashboards and headless websites in React, Next.js and TypeScript, tuned for Core Web Vitals and SEO. Hire us for a project or a dedicated React team.

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Developer at a minimal desk with a glowing component tree floating above the monitor

FIG 02 · Quick answer

What does a React development company do?

Elgrith is a React and Next.js development company. We build fast web apps, SaaS front ends, dashboards and headless websites with React, Next.js and TypeScript, connect them to your APIs, CMS or commerce platform, and tune them for Core Web Vitals and SEO. Hire us for a fixed-scope project or a dedicated React team.

Projects delivered since 2015
1,000+
Clients served
250+
The framework behind this website
Next.js
Your code and IP
100%

FIG 03 · Why it matters

React is the safe bet. Next.js makes it fast.

Widely used, easy to hire for and trusted by big brands. Figures from the Stack Overflow Developer Survey 2025, W3Techs and the Next.js showcase.

FIG 04 · Decision

React vs Next.js: which do you need?

React is a JavaScript library for building user interfaces, maintained by Meta. Next.js is a React framework that adds routing, server rendering, data fetching and build tooling. Every Next.js app is a React app; the question is how much of the platform you want built in.

React (single-page app) or Next.js?
React SPA (for example with Vite)Next.js
RenderingIn the browser (client-side)Server, static or client, chosen per page (SSR, SSG, ISR)
SEONeeds extra care: content appears after JavaScript runsStrong by default: pages arrive as HTML with metadata
RoutingAdded with a library such as React RouterBuilt in, based on files and folders (App Router)
DataFetched from your API in the browserFetched on the server with Server Components, or in the browser
HostingAny static host or CDNVercel, or Node.js on AWS, Cloudflare and other platforms
Best forApps behind a login, embedded widgets, admin toolsPublic sites, SaaS with marketing pages, headless commerce

Many products use both: Next.js for public pages and SEO, React screens behind the login.

Next.js SEO: technical SEO services

FIG 05 · What you get

React development services

Five React services, all written in TypeScript with tests, accessibility checks and performance budgets as standard.

Glowing tree of connected glass components with a blue root node: component-based architecture
React & Next.js Development · built in-house

01

Custom React web apps

Portals, internal tools and products with real-time data, built on React and a typed API.

02

SaaS front ends and design systems

Component libraries in Storybook, design tokens and accessible patterns your whole product can share.

03

React dashboards and data visualization

Fast tables, charts and filters over large datasets, with TanStack Query keeping data fresh.

04

Migration to React

Move from jQuery, Angular or an old front end in stages, or embed React screens inside your existing platform.

05

React performance and code audits

We profile rendering, bundle size and Core Web Vitals, then give you a prioritized fix list or fix it for you.

Deliverables

12

deliverables, in writing

Included in every build, written into your fixed quote before work starts.

FIG 06 · Flagship build

Proof: Kenerate AI and the site you are reading

Kenerate AI is our flagship web product: an all-in-one AI image and video studio, designed and engineered by Elgrith. This website runs on Next.js, built by us.

  • One app, one login and one credit balance across 200+ AI models
  • 23+ studios and tools, from Image Studio to Director
  • Up to 4K output, and credits never expire
  • Works inside Claude, ChatGPT, Cursor and 19+ AI apps
See the case studyVisit kenerateai.com (opens in a new tab)
Kenerate AI home page: “Create & edit images and videos with AI”, with a prompt box and a cinematic video reel

Home: one prompt box for image, video and music

AI models in one app
200+
Studios and tools
23+
Maximum output
4K
Guides
500+

FIG 07 · Next.js

Next.js development services

Server rendering, static generation and the App Router, used where they make your site faster and easier to find.

04principles

  • Next.js websites and headless CMS

    Marketing sites on Next.js with Sanity, Contentful or headless WordPress, so editors publish without a developer.

    WordPress development

  • Headless commerce with Next.js

    Fast storefronts on the Shopify Storefront API, with your catalogue, cart and checkout kept in Shopify.

    E-commerce development

  • Next.js SEO and Core Web Vitals

    SSR, SSG and ISR per page, metadata, structured data and budgets for LCP, INP and CLS.

    Technical SEO

  • Hire Next.js developers

    Add Next.js developers to your team for a project or every month, working in your repository and your tools.

    Hire dedicated developers

FIG 08 · Engagement

Hire React developers

Three ways to work with our React and Next.js developers. Each starts with a free call and a written scope.

03principles

  • Fixed project

    A written scope, a fixed quote and a phased plan. Best for a new app, a migration or an audit.

    Get a quote

  • Dedicated team

    React developers on your roadmap every month, in your repository, stand-ups and tools.

    Hire dedicated developers

  • White label

    For agencies: we build React and Next.js projects under your brand, with unbranded deliverables.

    Partner with us

FIG 09 · Buyer’s checklist

How to choose a React development company

Six things to check before you hire any React team.

06principles

  • TypeScript by default

    Typed code catches bugs early and makes the project easier to hand over.

  • Tests

    Ask for unit tests with Jest or Vitest and end-to-end tests with Playwright.

  • Accessibility

    Ask for a WCAG target in writing and how they test keyboard and screen-reader use.

  • Performance budgets

    Ask for Core Web Vitals targets and how they are checked before each release.

  • Code ownership

    The code and IP should be assigned to you, in a repository you control.

  • Exit terms

    Ask how you can scale down, swap a developer or take the work in-house. It should be in the contract.

Need a mobile app too?

React Native or Flutter?

We build cross-platform mobile apps with React Native or Flutter, sharing your design system and API with the web app. Our 2026 guide compares the two.

Flutter vs React Native

FIG 10 · Process · 6 steps

Typed, tested, fast

A fixed written quote, a working demo every sprint and performance checks before every release. You own the code.

Book a call
  1. Step 01

    Discovery or code audit

    For a new build we map users, screens and data. For an existing app we audit the code first. Either way, you get a written scope and a fixed quote.

  2. Step 02

    Architecture

    We choose React or Next.js, the rendering model per page, state management and the API contract, and set performance budgets.

  3. Step 03

    Design system

    Reusable, accessible components in Storybook, matched to your brand and your Figma files.

  4. Step 04

    Sprints with demos

    Features built in short sprints, with a working demo at the end of each one and preview links for every change.

  5. Step 05

    QA, accessibility and performance

    Jest and Playwright tests, WCAG checks and Core Web Vitals measured before launch.

  6. Step 06

    Launch and support

    Deployment to your own Vercel or cloud account, then updates, monitoring and new features as agreed in your scope.

FIG 11 · What you get

Everything included

Written into your fixed quote, so you know exactly what you are paying for before work starts.

12items

  • Written scope and fixed quote
  • Architecture and rendering plan
  • TypeScript codebase
  • Component library in Storybook
  • Unit and end-to-end tests
  • WCAG accessibility checks
  • Core Web Vitals budgets and report
  • SEO metadata and structured data (Next.js)
  • CI/CD with preview deployments
  • Deployment to your own accounts
  • Handover documentation
  • Full source code and IP

FIG 12 · Tech & tools

The tools behind the work

Proven, well-supported tools, chosen for your project and set up in accounts your business owns.

  • React 19
  • Next.js
  • App Router
  • Server Components
  • TypeScript
  • Vite
  • Tailwind CSS
  • Redux
  • TanStack Query
  • Storybook
  • Jest
  • Playwright
  • Sanity
  • Contentful
  • Shopify Storefront API
  • Vercel

FIG 13 · Who it’s for

React for startups, product teams and agencies.

Client partners in New York and London, engineering in New Delhi, and code that lives in your repository.

3 audiences

Startups

Ship the first version fast, on code that lasts.

A Next.js product with marketing pages and the app in one codebase, ready for SEO from the first release.

  • Next.js app and marketing site together
  • Design system from day one
  • Analytics and SEO built in
  • MVP to v1 with one team

FIG 14 · Working with us from the USA and UK

Built in New Delhi. Run on your hours.

Every project gets a point of contact in New York or London and an engineering team in New Delhi. Here is how today’s working days line up, live.

Three ways to work together

  1. 01

    Fixed-scope project

    A written scope, one fixed price and a dated plan. Suits websites, apps and MVPs.

  2. 02

    Dedicated team

    Designers and engineers on your roadmap every month, billed monthly.

  3. 03

    White label

    For US and UK agencies: our work, your brand, unbranded deliverables.

Every engagement

  • Fixed quote in USD, GBP or INR after a free 30-minute call
  • NDA before discovery. You own all code, designs and content
  • A working demo every sprint, not status slides
  • Reply within one business day, calls inside your hours
Book a call

Calls on ET or UK hours

FIG 15 · Compare

React agency, freelancer or in-house hire?

React agency, freelancer or in-house hire?
React development company (Elgrith)Freelance React developerIn-house hire
Best forFull builds, migrations and ongoing teamsSmall, well-defined tasksReact as a long-term core skill
CoverageUX, React, Next.js, back end, QA and SEOOne person’s skillsWhoever you hire
Time to startAfter a free call and a written scopeFast, if you find the right personMonths of recruiting
ContinuityA team, so work continues if someone is awayDepends on one personStrong, once hired
OwnershipCode and IP assigned to youDepends on the contractYours

FAQ

Frequently asked questions

Straight answers about React & Next.js Development with Elgrith.

It designs and builds user interfaces and web applications with React: web apps, SaaS front ends, dashboards and websites. Elgrith also builds with Next.js, connects the front end to your APIs, CMS or commerce platform, tests it, tunes it for Core Web Vitals and SEO, and supports it after launch.

FIG 16 · Related

Keep exploring

All services

Free 30-minute call

Building in React or Next.js? Let’s talk.

Book a free call. You get a written scope and a fixed quote for a project, or a plan for a dedicated React team.

Book a callStart a project

connect@elgrith.com+91 96039 20001Hire dedicated developers

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