Frontend Development

Modern Frontend Development
Built to Perform

We create fast, responsive, and scalable frontend applications using React, Next.js, and modern web technologies. Every interface is optimized for performance, accessibility, SEO, and exceptional user experiences across all devices.

React & Next.jsDesign SystemsServer-rendered SEOLegacy modernization
130+
Frontend Builds Shipped
96
Avg. Lighthouse Score
2.1×
Avg. Organic Traffic Lift
6+ Yrs
Frontend Development Experience
Our Process

How we build step by step

A structured process ensures nothing gets missed, from initial discovery to a fully optimized frontend launch.

  1. 01 Discover

    Discovery & Requirements Mapping

    User flows, component inventory, design handoff, and technical requirements mapped out before a single line of frontend code is written.

  2. 02 Architect

    Component Architecture & SEO Strategy

    Component structure, state management, rendering strategy, and an SEO plan decided up front, so the interface is fast, crawlable, and easy to extend.

  3. 03 Build

    Interface Development & QA

    Pixel-accurate, accessible interfaces built with modern frameworks and patterns, tested across browsers, devices, and edge cases before it ever reaches staging.

  4. 04 Launch

    Launch & Optimization

    Bundle size and Core Web Vitals audits, accessibility checks, analytics setup, and deployment. Plus 30-day post-launch support for refinements.

What's Included

Every frontend development service we offer

Websites, web applications, design systems, or API integrations, we cover the entire frontend ecosystem, not just the parts that are easy to template.

Custom Frontend Web Application Development

Full frontend applications with authentication flows, complex state, and rich interactivity, built for dashboards, portals, and internal tools.

  • React
  • TypeScript
  • State Management

Server-Rendered Marketing Sites

Marketing sites and content platforms built with server-side rendering and static generation, delivering clean HTML search engines can index without any extra work.

  • Next.js
  • SSR / SSG
  • Server-Rendered SEO

Design System & Component Library Development

Reusable, documented component libraries built to your design tokens, so every new feature ships consistent and faster than the last.

  • Design Systems
  • Storybook
  • Component Libraries

E-Commerce Frontend Development

Storefronts built with clean product URLs, schema markup, and fast checkout flows for brands that need both speed and search visibility.

  • Headless Commerce
  • Product Schema
  • Checkout UX

API Integration & Third-Party Connections

Frontends wired up to REST, GraphQL, and real-time APIs, connecting your interface to payment gateways, CRMs, and internal systems.

  • REST APIs
  • GraphQL
  • Real-Time Data

Legacy Frontend Modernization

Migrating outdated jQuery, AngularJS, or unframeworked frontends to modern React or Vue, incrementally or as a full rebuild, without disrupting the business that depends on them.

  • Migration
  • React / Vue
  • Modernization

Performance & Core Web Vitals Optimization

Bundle splitting, image and font optimization, lazy loading, and Lighthouse audits that fix the slow, poorly-ranking interfaces template agencies leave behind.

  • Bundle Optimization
  • Lazy Loading
  • Lighthouse

Ongoing Frontend Development & Support

Continuous feature development, framework and dependency upgrades, accessibility patching, and bug fixes, so your interface keeps evolving long after v1 ships.

  • Monitoring
  • Accessibility
  • Support
What You Get

Every deliverable included

  1. Production-Ready Codebase

    Clean, documented TypeScript and component code following modern conventions, handed off through your Git provider of choice, ready for your team to extend.

  2. Fully Responsive Build

    Every screen tested and refined across desktop, tablet, and mobile breakpoints, not just previewed at one screen size.

  3. SEO-Ready Rendering

    Server-rendered or statically generated HTML with clean URLs and proper status codes, so search engines index your content without any special handling.

  4. Core Web Vitals Report

    A before-and-after performance report covering load speed, interactivity, and layout stability, benchmarked with Lighthouse.

  5. Component & Design System Documentation

    A documented component library and usage guide so your team can extend the interface without guesswork.

  6. 30-Day Support Window

    Post-launch support for bug fixes, styling tweaks, and technical questions at no extra cost.

Selected Work

Frontend builds we've shipped

A cross-section of frontend work, from web applications to design systems and e-commerce storefronts.

SaaS Marketing Site

Custom Frontend Corporate Website

Full frontend rebuild with server-side rendering for a B2B SaaS company. Lighthouse performance score went from 41 to 96 and organic traffic grew 2.3× in six months.

  • Next.js
  • Server-Rendered SEO
  • Technical SEO
LeadPro

Lead Management Dashboard

Custom-built React dashboard replacing a spreadsheet workflow for a sales team of 40. Cut report generation time from hours to minutes.

  • React
  • Dashboards
  • Data Visualization
E-Commerce Fashion & Lifestyle

Meridian Boutique Storefront

Custom headless storefront frontend for a DTC fashion brand. Page load time dropped from 4.8s to 1.2s and organic revenue rose 34%.

  • Headless Commerce
  • Product Schema
  • CRO
Logistics & Fleet Management

RouteWise Fleet Tracker

Real-time fleet tracking interface with live map updates and driver check-ins. Cut dispatch response time by 45%.

  • React
  • Real-Time Data
  • Maps
Legacy Modernization

Harbor Freight Ops Rebuild

Rebuilt a decade-old jQuery operations tool on React and TypeScript with zero downtime during the transition. Page load time dropped 78%.

  • Migration
  • React
  • Modernization
Design System

Roastworks Component Library

Custom design system and component library built for a coffee subscription brand's marketing and product teams, cutting new-feature build time in half.

  • Design Systems
  • Storybook
  • Accessibility
Client Voices

What it's like to work with us

We measure success in load times and rankings, not just how a page looks. Here's what a few clients had to say.

Our old interface took nine seconds to load on mobile because nobody had touched the bundle in years. The rebuild came in under two, and our organic traffic more than doubled.
Ananya Kapoor
Head of Product, WooCommerce
They handed off a component library our own engineers actually enjoyed working in, with patterns that made every new feature faster to ship.
Rohan Mehta
Founder, Meridian Boutique
Migrating our legacy jQuery site to React felt daunting, but the transition was seamless and load times dropped almost overnight.
Daniel Cruz
Operations Lead, Harbor Freight
Transparent Pricing

Simple, honest pricing

No hidden fees, no surprises. Choose a package that fits your scope or talk to us for a custom quote.

Starter

₹ 20Konwards

Perfect for marketing sites and portfolios that need speed and SEO out of the gate.

  • Up to 6 pages
  • Fully responsive build
  • Server-rendered SEO
  • Unlimited revisions
  • Basic CMS integration
  • Domain + hosting + SSL included
  • 1 year free support
  • E-commerce build
  • Custom design system
  • API integrations
Get Started

Enterprise

Custom

For large product suites, legacy migrations, custom design systems, or teams needing an embedded frontend development team on retainer.

  • Unlimited pages/screens
  • Full design system build
  • Legacy frontend migration
  • Unlimited revisions
  • API & third-party integrations
  • Advanced performance tuning
  • Domain + hosting + SSL included
  • 1 year free priority support
  • Dedicated development lead
  • Monthly retainer available
Talk to Us
FAQ

Common questions

Anything else on your mind? Drop us a message at info@sitefiy.com

Yes, when it's rendered correctly. Frameworks like Next.js support server-side rendering and static generation out of the box, which means search engines get fully-formed pages without needing to execute client-side JavaScript, historically one of the more reliable setups for SEO. Combined with clean URLs and proper metadata, a modern frontend gives you both speed and search visibility.

React suits teams that want a large ecosystem and hiring pool. Vue suits teams that want a gentler learning curve and tighter defaults. Plain JavaScript still has a place for lightweight sites or widgets embedded in an existing system. We'll recommend the right fit during discovery.

A marketing site typically takes 3–6 weeks; a full web application frontend or design system usually takes 8–16 weeks depending on scope. We share a detailed timeline in our proposal before development begins.

We split and lazy-load bundles, optimize images and fonts, minimize render-blocking resources, and run Lighthouse audits against Core Web Vitals throughout development, not just as a final step before launch.

Yes. We migrate jQuery, AngularJS, or unframeworked frontends to modern React or Vue, either incrementally alongside the existing interface or as a full rebuild, with a plan designed to avoid downtime for the business relying on it.

Both. We can build a custom design system and component library from scratch, or implement components against an existing design system your team has already defined in Figma.

Yes. Upon receipt of final payment, full IP and the complete codebase transfer to you through your own Git repository and hosting account, no vendor lock-in.

We offer optional retainers for continued feature development, framework and dependency upgrades, accessibility patching, and bug fixes after launch. It's entirely opt-in, not bundled by default.
Ready to Begin

Let's build a frontend
that actually ranks

Tell us about your project and we'll get back within 24 hours with a tailored frontend development proposal, no commitment required.