Technologies · React
React development for interfaces people use all day
We build dashboards, booking flows, admin panels and design systems in React and TypeScript, with tests, accessibility checks and documentation that let your own team carry on.
React is an open-source JavaScript library, created and maintained by Meta, for building user interfaces out of small, reusable components. It is the most widely used way to build interactive web front ends, which matters to a business for one practical reason: React developers are easy to find, so the code you pay for today can be maintained by someone else tomorrow. Meritbyte Technologies is a Nepal-based software company that builds React applications for clients in Nepal and abroad, written in TypeScript and handed over in your name.
What is React used for?
React is used for any screen where the interface changes as people use it, without a full page reload. In business software that means:
- Dashboards and admin panels that filter, sort and chart thousands of records.
- Multi-step flows such as bookings, quotes, applications and checkouts, where each step depends on the last.
- Real-time screens like chat, order tracking and live stock or pricing.
- Design systems: one library of buttons, forms and tables shared by several products, so they look and behave the same.
A mostly-static marketing site does not need much React in the browser. There, a framework that renders on the server, such as Next.js, sends less JavaScript and ranks better.
React or Next.js: which do you need?
React is the library; Next.js is a framework built on it. The React team itself recommends starting new projects with a framework, and the old Create React App starter has been deprecated.
| Choose | When |
|---|---|
| Next.js | Public pages must rank in search, load fast on phones, or mix static and logged-in content |
| React with Vite | A logged-in app behind a login screen, where search engines never see the pages |
| React Native | The same team also needs iOS and Android apps |
Most projects we take on use Next.js for anything public and plain React for internal tools. If you are deciding whether you need a website or an application at all, our guide to website vs web application is a good place to start.
How we build React applications
The tools change; the habits that keep a codebase cheap to change do not.
- TypeScript everywhere. Types catch a class of bugs before they ship and make the code readable to the next developer.
- Server state handled once. Data fetching and caching through TanStack Query or the framework's own server components, not hand-written in every screen.
- Forms with validation shared with the API. React Hook Form and Zod schemas, so the browser and the server agree on what valid data looks like.
- Components documented in Storybook, so designers and developers review the same thing.
- Tests at three levels. Unit tests with Vitest or Jest, component tests with Testing Library, and end-to-end tests in Playwright on the flows that make money. Our QA and testing service covers the wider strategy.
- Accessibility as a requirement. Keyboard use, focus order, labels and contrast checked against WCAG 2.2 level AA, with axe in the test suite.
Taking over an existing React codebase
Much of our React work is inherited. A product was built quickly, the original developer moved on, and now every change breaks something. We start with a one-week review: dependency health, test coverage, bundle size, the riskiest components and a list of fixes ranked by cost and payoff. You get the written review whether or not you hire us for the fixes.
Then we fix in two-week blocks, with a demo at the end of each. Rewrites from scratch are rarely the right answer; replacing the worst parts while the product keeps running usually is.
How a React project runs with us
- Free scoping call, then a written scope, a timeline and a number.
- Fixed-price first milestone, typically the architecture, the design system foundations and one complete flow working on staging.
- Two-week build blocks with a demo at the end of each. You can stop after any block.
- Handover with documentation, the repository in your organisation and a recorded walkthrough.
If you want React developers working inside your own team instead, see hire developers. For early-stage products, our MVP development guide explains how to keep the first version small.
Frequently asked questions
What is React used for in business?
React is used to build interactive screens: dashboards, admin panels, booking and checkout flows, customer portals and real-time features such as chat or tracking. Because React developers are common, a React codebase is easier to staff and hand over than one built on a niche framework.
Is React a framework or a library?
React is a library for building user interfaces. It handles components and rendering, and leaves routing, data loading and server rendering to other tools. Frameworks such as Next.js add those pieces, which is why the React team recommends starting most new projects with a framework.
Can you work on our existing React app?
Yes. We start with a one-week code review covering dependencies, tests, performance and the riskiest parts of the code, and give you a ranked list of fixes. Then we work through them in two-week blocks, keeping the app running throughout rather than rewriting it from scratch.
Do you write React in TypeScript?
Yes, by default. TypeScript catches many bugs before they ship, documents how data moves through the app and makes the code easier for the next developer to pick up. If your existing app is plain JavaScript, we can convert it gradually, file by file, without stopping feature work.
How do I hire React developers from Meritbyte?
Two ways. For a defined project, we scope it and fix the price of the first milestone. To add capacity to your own team, our developers join under the Embedded model, working in your tools and standups. Either way, the code lives in your repository from day one.