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Frontends That Match the Design and Perform

We turn Figma files into responsive, accessible, fast interfaces in React, Vue, Angular or plain HTML and CSS, then keep them consistent as products grow.

Disclosure.tsx
Sample code

Frontend development that closes the gap between design and code

Frontend development is everything a user sees and touches in a browser: layout, typography, interactions, forms, animations and how quickly it all loads. Good frontend work matches the approved design on every screen size, works with a keyboard and screen reader, and stays fast on an average phone. Weak frontend work shows up as broken layouts, slow pages and support tickets.

Most businesses come to us with one of three needs: a design that must become working code, an existing interface that feels slow or inconsistent, or a design system to stop every team building buttons differently. The framework is a secondary choice. React suits complex apps, Next.js suits SEO-heavy sites, Vue and Angular suit teams already invested in them, and plain HTML with Tailwind is often enough for simple sites.

Nexzem pairs designers and frontend developers on the same project, so spacing, states and edge cases get resolved before they become bugs. We test across browsers and devices, check accessibility against WCAG, and measure Core Web Vitals before handover. You receive a documented component library, so future pages are assembled from parts that already work rather than rebuilt from scratch.

Read Frontend, the way we write it

A short, idiomatic sample. Scroll and the editor types each part while the note beside it explains why it is written that way.

Disclosure.tsx
Sample code
import { useId, useState } from "react"
// Accessible by default: a real button, ARIA wiring, keyboard for free
export function Disclosure({ title, children }: { title: string; children: React.ReactNode }) {
const [open, setOpen] = useState(false)
const id = useId()
// Utility classes keep the styling next to the markup
return (
<div className="rounded-xl border">
<button aria-expanded={open} aria-controls={id} onClick={() => setOpen(!open)} className="w-full p-4 text-left">
{title}
</button>
<div id={id} hidden={!open} className="p-4">
{children}
</div>
</div>
)
}
  1. line 3-7

    Accessible by default: a real button, ARIA wiring, keyboard for free

  2. line 8-19

    Utility classes keep the styling next to the markup

What we build with Frontend

Accessible, responsive frontends turned from Figma designs into fast, maintainable code in any modern framework.

  1. 01

    Figma to Code

    Pixel-accurate conversion of Figma designs into responsive components, including hover, focus, loading, empty and error states that designs often leave out.

  2. 02

    Design System Development

    Tokens, components and usage docs that give designers and developers one shared source of truth for colours, spacing, type and patterns.

  3. 03

    Responsive UI Rebuilds

    Rebuilds of dated or desktop-only interfaces into layouts that work well from small phones to wide monitors, without changing your backend.

  4. 04

    Accessibility Remediation

    WCAG audits and fixes covering semantic markup, keyboard support, focus order, labels, contrast and screen reader behaviour across key journeys.

  5. 05

    Page Speed Optimisation

    Image formats, font loading, script deferral and CSS cleanup that improve Core Web Vitals and reduce bounce from slow mobile connections.

  6. 06

    Interactive Features

    Configurators, calculators, data visualisations, drag and drop interfaces and animation, built so they stay smooth on mid-range phones and usable with a keyboard.

  7. 07

    Frontend Team Extension

    Experienced frontend developers who join your sprints, follow your standards and help clear a backlog of UI tickets.

Why teams pick Nexzem for Frontend

The checks every engagement has to pass before we call it done.

.github/PULL_REQUEST_TEMPLATE.md4/4 checked

  • - [x] Design fidelity

    Designers and developers review builds together, so what ships looks like what was approved.

  • - [x] Usable by everyone

    Accessibility built in from the start reduces legal risk and opens your product to more customers.

  • - [x] Framework-neutral advice

    We work across React, Vue, Angular and Next.js, so you get the right tool for your context.

  • - [x] Faster pages

    Performance budgets and measurement keep pages quick on the devices your customers actually use.

TypeScript vs JavaScript for frontend projects

TypeScript has become the default for professional frontend work. Types catch mistakes such as missing fields, wrong data shapes and misspelled properties before code runs, make refactoring large codebases safer and give editors accurate autocomplete. Typed API clients generated from backend schemas keep frontend and backend in agreement as both evolve.

Plain JavaScript still suits small scripts, quick prototypes and simple sites where a build step adds little value. Our TypeScript vs JavaScript comparison discusses the trade-offs. For any product expected to grow beyond a few screens or developers, TypeScript usually pays back its learning cost within weeks.

Existing JavaScript projects can migrate gradually, file by file, with strictness increased over time, so teams do not need to stop feature work to adopt it. Strict mode can be enabled module by module as types improve, and generated API types give immediate value at the boundary with the backend.

How we turn designs into production frontends

We start by turning the design file into a system: tokens for color, type, spacing and radius, and an inventory of components with their states and variants. Building these first in Storybook, reviewed by designers, means pages later assemble from proven parts instead of one-off code that drifts from the design.

Every component handles real conditions: long text, missing images, loading and error states, keyboard focus and screen readers. Responsive behavior is defined by component, not only by page breakpoints. Visual regression tests capture screenshots of components and key pages so unintended changes are caught in review.

Performance budgets set limits for JavaScript size and page load metrics, and CI fails when a change exceeds them. Accessibility is checked automatically and by keyboard and screen reader testing before each release. Results are shared with the whole team so regressions are fixed quickly.

  • Design tokens synced between Figma and code.
  • Component library documented in Storybook.
  • Visual regression and accessibility checks in CI.
  • Performance budgets for bundles and Core Web Vitals.

Cost drivers of a frontend project

Frontend scope depends on more than the number of screens. The factors below usually decide effort, and clarifying them at the start avoids rework when edge cases appear late in the project. We document assumptions so changes are visible and agreed.

Content readiness is a frequent hidden cost. Pages designed with placeholder text often need layout changes when real copy, translations and product data arrive, so plan content early and test designs with realistic text lengths and images from the start.

  • Number of unique templates and reusable components.
  • Interactivity: dashboards, editors, drag and drop or real-time updates.
  • Accessibility level required, such as WCAG 2.2 AA.
  • Browser and device support, including older browsers.
  • Localization and right-to-left languages.
  • Integration with APIs, CMS and analytics.
  • Testing depth and design system maturity.
  • Animation and micro-interaction requirements.
  • Number of reviewers and approval rounds on design.

How Frontend projects run

$ git log --graph --oneline main..delivery

  1. 7da1a9e

    feat: design and code review

    We review Figma files and any existing frontend for gaps, inconsistencies and technical risks.

  2. 54d6d9f

    feat: foundations

    Tokens, base styles, grid and core components built first so pages assemble quickly.

  3. f0e54ea

    feat: page and feature build

    Screens and interactions delivered in sprints with preview links for design sign-off.

  4. 2cd1caa

    feat: cross-device QA

    Testing on major browsers, real phones and assistive technology, plus Lighthouse checks.

  5. 93bccee

    merge: handover

    Documentation, component guide and optional ongoing support or team extension.

What teams build with Frontend

  • Figma to production landing pages

    A marketing team hands over Figma designs for a campaign, and pixel-accurate, responsive pages ship in days using the existing component library, with forms, tracking and A/B test variants ready before launch.

  • Accessibility remediation for a bank website

    A bank's website is audited against WCAG 2.2 AA, issues are fixed in shared components such as forms, menus and dialogs, and automated checks are added to CI so new releases do not reintroduce barriers.

  • Design system rollout across products

    A company with several web products builds one component library and gradually replaces inconsistent buttons, forms and tables in each product, making interfaces consistent and future features faster to build.

  • Performance rescue for a slow store

    An ecommerce site with poor Core Web Vitals has its images, fonts, scripts and rendering strategy optimized, third-party tags trimmed and caching improved, bringing key pages within good thresholds for mobile shoppers.

  • Micro frontend migration

    A large legacy frontend is split into independently deployable micro frontends, so separate teams can modernize their areas on their own schedule while users continue to see one consistent application.

Where Frontend sits in your stack

The tools we pair it with, layer by layer. Select a layer to see what it is responsible for.

Frontend development FAQs

Something else on your mind? Ask a consultant and get a reply within one business day.

Which frontend framework should we use?

It depends on the product. React or Next.js suit most new apps and SEO-driven sites, Angular suits large enterprise teams, Vue suits smaller teams and Laravel stacks, and simple sites may need no framework at all. We recommend one after understanding your needs.

What affects frontend development cost?

Number of unique templates, interaction complexity, design system scope, accessibility requirements, browser support and integration with your backend all drive effort. A fixed quote follows a free consultation.

Can you work from our designers' Figma files?

Yes. We work directly from Figma, flag missing states or responsive gaps early, and agree fixes with your designers before building.

Do you make websites accessible?

Yes. We build and audit against WCAG guidelines, test with keyboard and screen readers, and provide a list of issues fixed and any remaining items that need content or design changes.

Can you just add developers to our existing team?

Yes. Frontend developers can join on a monthly dedicated basis, follow your workflow and tools, and start with a short trial period.

How do you check that the build matches the design?

Designers review components in Storybook and pages in preview environments for every pull request. Visual regression screenshots highlight unintended changes, and we use design tokens from Figma so colors, spacing and typography stay consistent between the design file and production code.

Which browsers and devices do you support?

By default, we support the latest versions of Chrome, Safari, Edge and Firefox on desktop and mobile, tested on real iPhones and a range of Android devices. Older browsers or specific devices can be added based on your analytics and audience.

We work with clients across the USA, UK, Australia, UAE, New Zealand and India.

Where we work

Tell us what you're building.

A solutions consultant replies within one business day with a recommended stack, a rough estimate and a suggested team.