Web Development • Johannesburg Performance First

Web Development that Means Business — Fast, Accessible, and Built to Scale

From conversion-focused websites to custom web apps, APIs and eCommerce stores — we design, build and optimise digital products that load fast, rank well and integrate with your business tools.

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Next.js / React WordPress / WooCommerce Headless CMS Node.js APIs Analytics & CRO
Crestech web developer in Johannesburg working on laptop — professional web development services

Why Choose Crestech for Web Development

Local, Business-Focused

Johannesburg-based team with hands-on experience across SA industries — not just code, but outcomes that matter.

Full-Stack Capability

Front-end UX & UI, back-end APIs, CMS, eCommerce, integrations and DevOps — built as one cohesive system.

Transparent & Sustainable

Performance, accessibility and SEO baked in from day one, with clear reporting and maintainable code.

What We Build

Pick a single solution or combine them for end-to-end delivery.

WD

Websites

  • Marketing sites & landing pages
  • CMS (WordPress) or headless (Next.js + CMS)
  • Core Web Vitals, accessibility & SEO-ready
EC

eCommerce

  • WooCommerce & Headless storefronts
  • Payments (PayFast, Ozow, PayGate) & shipping rules
  • Product filters, PDPs, checkout optimisation
API

API Development

  • REST/GraphQL services (Node.js)
  • Internal dashboards & secure admin tools
  • Rate-limiting, auth (JWT/OAuth2), logging
IN

Integrations

  • CRM (HubSpot, Zoho), ERP, inventory sync
  • Analytics (GA4, Looker/Data Studio)
  • Email/SMS (Mailchimp, SendGrid), WhatsApp
SP

Web Apps

  • Dashboards, portals, booking & subscription apps
  • SSR/SSG with Next.js for speed & SEO
  • Role-based access & audit trails
PF

Performance

  • Core Web Vitals tuning (LCP/CLS/INP)
  • Image/CDN strategy & code-splitting
  • Caching & server-side rendering
AC

Accessibility

  • WCAG-informed design & semantic HTML
  • Keyboard focus & color-contrast testing
  • Screen-reader checks and ARIA where needed
MT

Care & Support

  • Updates, backups, security & uptime monitoring
  • Content help & small enhancements
  • Monthly reports & roadmap
Prefer a single partner from idea to launch?

We handle UX, development, QA, hosting guidance and long-term care.

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Modern Stack. Maintainable Code.

Front-end

Accessible, component-driven UI

Semantic HTML, Poppins typography, responsive CSS Grid/Flexbox, and framework-agnostic patterns that keep pages fast and maintainable.

  • Next.js / React, Vanilla JS for lean interactions
  • Progressive enhancement & graceful degradation
  • Design tokens: your :root variables for consistent theming
Back-end

Secure, API-first foundations

We design APIs and data models that match real business workflows and integrate cleanly with your tools.

  • Node.js/Express APIs, REST & GraphQL
  • Auth (JWT/OAuth2), input validation, rate-limiting
  • Logging/monitoring, backups, staging & CI
CMS

WordPress or Headless

Choose familiar WP/WooCommerce or go headless for speed and flexibility. We’ll recommend what fits your content model and team.

Data & SEO

Analytics & Search Built-in

GA4 events, server-side tracking where applicable, XML sitemaps, schema, redirects & clean IA for sustainable organic growth.

Compliance

POPIA-aware Forms & Consent

Clear consent copy, secure storage practices and least-privilege data handling for peace of mind.

How We Deliver

1) Discovery & Scope

We map goals, users, content, integrations and constraints. You’ll get a clear proposal with timelines and deliverables.

2) UX, Architecture & SEO Foundations

Sitemaps, wireframes, schema & performance budgets so we launch with speed, accessibility and search in mind.

3) Build & Integrate

Front-end components, CMS setup, API endpoints, and third-party integrations — shipped in weekly increments.

4) QA, Launch & Measure

Cross-browser/device QA, lighthouse checks, analytics validation, then go-live with monitoring and rollback plans.

Ever-Evolving Tales Of Success

Case study screenshot for fixonet

Fixonate — Custom Web Applications

Developed WhatsApp API integration and automated payslip generation.

Streamlined client onboarding & faster workflows

Case study screenshot for randmarketloans

Rand Market Loans — Growth Through SEO

Enhanced Local SEO, tightened site security, and optimized load speed.

+48% organic traffic in 90 days

Case study screenshot for sandsec

SANDSEC — Civil Engineering Visibility

Redesigned UX and improved on-page SEO for stronger online presence.

+32% conversion rate uplift

Case study screenshot for zinzanathi

Zinzanathi Guesthouse — Smarter Booking System

Launched Local SEO campaigns and optimized landing pages for bookings.

3× more qualified reservations

Case study screenshot for zinzanathi

Ariva Arts — Events

Redesigned their website and integrated AI for coding and maintenance.

5× more in performance

Web Development FAQs

Do you only work with WordPress?
No. We build WordPress and headless (Next.js + API) depending on goals, editing needs, and budget.

How do you ensure speed?
We set performance budgets, optimise images/fonts, use SSR/SSG where useful, and monitor Core Web Vitals.

Can you integrate with our CRM/ERP?
Yes. We connect websites and stores to HubSpot/Zoho, inventory and accounting tools via secure APIs.

Do you maintain the site after launch?
Yes — optional monthly care plans for updates, backups, security and small changes.

Ready to build something robust?

Tell us what you’re planning — website, eCommerce, API or full product — and we’ll share a clear roadmap and quote.

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