- Web Development

Web that
performs.
Not just looks good.

Custom web applications, SaaS platforms, and e-commerce stores engineered for speed, conversion, and scale - with code clean enough to hand to any senior engineer.

150+

Projects delivered

99 / 100

Avg Lighthouse score

0.4s

Avg page load time

●

99 / 100

Lighthouse Score

0.4s Load Time

🔒yourclient.com
Contact
Framer Motion Active
Demo Call
Portfolio

0+

Projects delivered

0/100

Avg Lighthouse score

0.4s

Avg page load time

0%

Avg conversion lift

- What We Build

Pick your product type

Web Apps

Custom-engineered from the ground up

Bespoke web applications built on React, Next.js, and Node.js - with scalable architecture, clean APIs, and zero technical debt baked in from day one. Not a template. Not a page builder.

  • ✓Authentication & authorisation
  • ✓Real-time features (WebSockets)
  • ✓REST & GraphQL APIs
  • ✓Database design & optimisation
  • ✓Cloud deployment & CI/CD
React.js Enginev19.0.0
Active Users
12.4K +4%
API Latency
45ms
Recent Activity Log
Production bundle optimized1m ago
Authenticated via OAuth2m ago

- Performance First

Speed is a
business metric.

A 1-second delay in page load reduces conversions by 7%. We build for Core Web Vitals green across the board - because fast isn't a feature, it's the baseline.

Every project is Lighthouse-tested

Performance, Accessibility, Best Practices, and SEO - all measured before anything ships.

98/ 100

0.8s

LCP

How fast main content loads

100/ 100

12ms

FID

Time to first interaction

99/ 100

0.01

CLS

Visual stability of the page

- Proof

Recent work

+340%

Conversion rate

SaaS Platform

+340%

Conversion rate

FinTech Startup

Rebuilt a legacy banking portal into a modern React SaaS - reduced bounce rate by 60%, tripled sign-ups, and cut infra cost by 45% within 90 days.

£2.4M

Additional revenue

E-commerce

£2.4M

Additional revenue

D2C Fashion Brand

Custom headless Shopify with AI-powered upsells and one-click checkout. ROI hit 4.2× in the first quarter.

4×

Faster page loads

Headless CMS

4×

Faster page loads

Global Media Group

Migrated 12,000 articles from WordPress to headless Sanity + Next.js. Editorial team publishes across web, app and newsletter from one unified content hub.

- What Clients Say

Don't take our word for it

★★★★★

"Responsive Root didn't just build our product - they turned it into a growth engine. Our MRR doubled in the first quarter post-launch. They think like founders, not agencies."

SM

Sarah Mitchell

CEO, LaunchPad SaaS

★★★★★

"We interviewed six agencies. Responsive Root were the only team who asked about our business goals before quoting. The website they built converts 3× better than our old one."

JT

James Thornton

Head of Digital, RetailFlow

★★★★★

"Delivered on time, on budget, and exceeded every expectation. Our enterprise clients were shocked that a startup had such a polished, enterprise-grade product."

PN

Priya Nair

Founder, MedConnect

★★★★★

"We'd been burned by two agencies before. Responsive Root were completely different - transparent process, clean code, and they actually cared about our outcomes."

TB

Tom Bradley

CTO, FinEdge

- Quick Reference Stack

Core technologies at a glance.

Frontend

ReactNext.jsTypeScriptTailwind CSSRadix UIAstroSvelte

Backend

Node.jsPostgreSQLRedisGraphQLtRPCFastAPILaravel

Infrastructure

AWSVercelDockerGitHub ActionsCloudflareTerraformKubernetes

Commerce

ShopifyStripeMedusa.jsAlgoliaRechargeWooCommercePaddle

CMS & Content

WordPressSanityContentfulStrapiPayload CMSPrismicGhost

Auth & Data

ClerkAuth0NextAuth.jsSupabasePrisma ORMElasticsearch

- Full Capability

The Full Tech Arsenal.
80+ tools. Every layer covered.

Frontend

ReactCore
Next.jsFull-stack
Vue.jsAlternative
NuxtAlternative
Svelte / SvelteKitPerformance
AstroContent
RemixSSR-first
AngularEnterprise
TypeScriptStandard
ViteTooling

Styling & UI

Tailwind CSSUtility
CSS ModulesScoped
Framer MotionAnimation
GSAPAnimation
Radix UIHeadless
shadcn/uiComponents
StorybookDesign System
Styled ComponentsCSS-in-JS

Backend

Node.js + ExpressREST APIs
Node.js + FastifyPerformance
tRPCType-safe
GraphQL (Apollo)Flexible
Python / FastAPIData & ML
DjangoBatteries included
Go (Gin / Fiber)High throughput
PHP / LaravelTraditional
Ruby on RailsRapid MVP

Databases

PostgreSQLGold standard
MySQL / MariaDBTraditional
MongoDBDocument store
RedisCache & realtime
SQLiteEmbedded
SupabaseBaaS
PlanetScaleServerless MySQL
NeonServerless Postgres
Prisma ORMType-safe ORM
ElasticsearchSearch & analytics

CMS

WordPressTraditional
SanityHeadless
ContentfulHeadless
StrapiSelf-hosted
Payload CMSCode-first
PrismicSlice-based
DirectusAny DB
GhostPublishing
DrupalEnterprise
WebflowVisual

E-commerce

ShopifyD2C
Shopify HydrogenHeadless
WooCommerceWordPress
Medusa.jsOpen-source
BigCommerceEnterprise
StripePayments
PaddleSaaS billing
AlgoliaSearch
RechargeSubscriptions

Cloud & Hosting

VercelNext.js / Edge
NetlifyJAMstack
AWSFull control
Google CloudEnterprise
AzureMicrosoft
DigitalOceanCost-efficient
Cloudflare PagesEdge-first
Fly.ioContainers
HetznerAffordable VPS

Auth & Identity

NextAuth.jsNext.js
ClerkDrop-in UI
Auth0Enterprise SSO
Supabase AuthPostgres stack
AWS CognitoAWS-native
KeycloakSelf-hosted

DevOps & Testing

GitHub ActionsCI/CD
DockerContainers
KubernetesOrchestration
TerraformIaC
PlaywrightE2E testing
Vitest / JestUnit tests
CypressComponent E2E
DatadogMonitoring

- Content Management

CMS & Content Platforms.
We work with all of them. We recommend the right one.

🌐
Traditional

WordPress

Blogs, brochures, SMB websites

  • ✓WooCommerce store
  • ✓Huge plugin ecosystem
  • ✓Familiar Gutenberg editor
  • ✓Elementor / WPBakery page builders
🧩
Headless

Sanity

Structured content, custom schemas

  • ✓Real-time collaboration
  • ✓GROQ query language
  • ✓Portable text format
  • ✓Custom input components
☁️
Headless

Contentful

Enterprise, multi-channel delivery

  • ✓Content modelling studio
  • ✓Multi-locale support
  • ✓Webhook pipelines
  • ✓App framework
⚙️
Self-hosted

Strapi

Full control, open-source teams

  • ✓REST & GraphQL APIs
  • ✓Custom plugin system
  • ✓Role & permission system
  • ✓On-premise deployable
🔷
Code-first

Payload CMS

TypeScript-native, developer teams

  • ✓Schema in TypeScript
  • ✓Built on Express/MongoDB
  • ✓Block-based layouts
  • ✓Local API - zero HTTP overhead
Traditional CMS

WordPress · Drupal

Coupled architecture - CMS controls both content and presentation layer.

  • ✓Faster setup for simple sites
  • ✓Familiar editor for non-technical teams
  • ✓Massive plugin & theme ecosystem
  • ✓WooCommerce for e-commerce

We recommend when:

Blogs, brochure sites, small business, editorial publishing, WooCommerce stores

Headless CMS

Sanity · Contentful · Strapi · Payload

API-first - content lives independently and feeds any frontend via API.

  • ✓Total developer freedom & framework choice
  • ✓Content reuse across web, mobile, IoT
  • ✓No PHP overhead - exceptional performance
  • ✓Structured content modelling & workflows
  • ✓Future-proof as your product scales

We recommend when:

SaaS products, enterprise platforms, multi-channel apps, marketing sites that need speed

- Common Questions

FAQ

A landing site takes 2-4 weeks. A full SaaS platform runs 10-20 weeks. After discovery, you get a precise timeline before any contract is signed.

Yes - code audits and take-overs are something we do regularly. We assess, give you a written report, and recommend the most cost-effective path forward.

Both. We've launched MVPs from napkin sketches and scaled platforms to 100k+ users. We tailor engagement model and budget to your stage.

Every project includes a full handover, technical docs, and 30 days of monitoring. Ongoing retainer and growth sprint packages available.

Security is architected in from day one. OWASP Top 10, penetration testing pre-launch, GDPR/HIPAA/SOC 2 compliance where required.

It depends on your content complexity and who manages it. We use WordPress for blogs and brochure sites, and Sanity/Contentful/Strapi for headless setups where content needs to feed multiple platforms. We'll recommend the right fit during discovery - we never over-engineer it.

Absolutely. We've migrated sites with thousands of posts from WordPress to headless setups using Sanity and Next.js - preserving all content, SEO rankings, and URLs, while dramatically improving performance.

Let's build something
worth showing off.

Tell us what you're building - we'll tell you exactly how to build it right.