Web Application Development
Web application and website development on Next.js, React and WordPress
We build logged-in web applications, booking tools and marketing websites, backed by APIs and databases designed for the load you expect. You review working software on a preview link every one to two weeks, not a mock-up at the end.
Software Engineering
What is web application development?
Web application development is the engineering of software that runs in a browser, from interactive portals, dashboards and booking tools to content-led marketing websites. It covers the front end people use, the back end that stores data and enforces business rules, and the hosting, security and deployment pipeline that keep both running.
A marketing website and a web application share a browser but solve different problems. A website has to explain, persuade and rank, and it is usually edited by people who are not developers. A web application has to handle accounts, permissions, data and workflows without breaking as usage grows. We build both, and we are clear from the first call about which one you actually need.
Platform choice follows the job. Next.js and React suit custom interfaces, logged-in products and pages that must render quickly on the server. WordPress suits content-led sites where a marketing team publishes every week. Behind either, we build the APIs, database schema, authentication and integrations in Node.js, NestJS, Laravel or Python, depending on what your team can maintain after launch.
We work to explicit budgets for page weight, Core Web Vitals and accessibility, test on real phones rather than desktop emulation, and ship through automated pipelines with a preview environment for every change. Delivered work includes WordPress sites for a solar EPC contractor, an interior design studio and a furnishing business, and the same discipline around structure, speed and search carries into the applications we build.
Challenges
The problems we are usually brought in to solve
Pages that look finished but load slowly
Heavy themes, oversized images, extra web fonts and stacks of tag-manager scripts push mobile load times up, which costs both enquiries and search visibility.
Front-end code nobody dares to change
An ageing page-builder theme or jQuery front end with no tests and no type checking means every new feature risks breaking a page that used to work.
Editors who depend on developers
Marketing teams wait days to change a headline, add a landing page or update a price because the CMS was never set up for them.
Business rules hidden in the browser
Pricing, eligibility or permission logic written only in client-side code is hard to test and easy for a determined user to bypass.
Accessibility left until an audit
Unlabelled form fields, focus lost inside pop-ups and keyboard traps in custom widgets exclude users and become expensive rework when a customer or tender asks for evidence.
Rebuilds that lose search traffic
Relaunches that change URLs without redirects or drop structured data can erase rankings the old site took years to earn.
Capabilities
What the service covers
Logged-in web applications
Account areas, booking tools and dashboards with secure sessions, role-based views and server-side filtering and pagination, so screens stay quick as data grows.
Next.js and React front ends
Server, static and incremental rendering chosen route by route, with React Server Components and TypeScript keeping the JavaScript sent to each browser small.
Corporate and marketing websites
Service-led sites on WordPress or Next.js with clear page structure, obvious enquiry paths and an editing experience your marketing team can run alone.
Headless CMS and content modelling
Structured content types for pages, case studies and products, including WordPress as a headless back end, so editors publish without touching code.
Back ends for web applications
Route handlers or a separate Node.js, NestJS or Laravel service, with server-side validation, PostgreSQL or MySQL schemas and migrations kept under version control.
Authentication, roles and payments
Sign-in with email, social or company identity providers, granular roles, and Stripe checkout or subscriptions where the application takes money.
Core Web Vitals engineering
Image and font optimisation, code splitting, caching headers and edge delivery, checked against agreed loading, responsiveness and layout-shift budgets on every build.
Multilingual and right-to-left sites
English, Arabic and Urdu interfaces built with CSS logical properties, mirrored components and fonts that render both scripts cleanly, managed from one CMS.
Progressive web apps
Installable web apps that cache key screens for poor connections and can send push notifications, for teams that want app-like behaviour without an app store release.
Our process
How an engagement runs
Every engagement has a named lead, a written scope and working software to review every one to two weeks.
- 01
Scope pages, screens and content
A discovery call, then a written proposal covering users, the page or screen inventory, integrations, who supplies content and what the first release must include.
- 02
Sitemap, wireframes and design
Sitemaps, user flows and wireframes come before visual design, so navigation, content and conversion paths are agreed while change is still cheap.
- 03
Build against real content
Pages and screens are built with your actual copy, images and sample data from the start, so layout and wording problems surface in review rather than on launch day.
- 04
Verify speed, accessibility and behaviour
Unit and end-to-end tests run in CI, alongside manual checks on phones, different browsers, screen readers and throttled network connections.
- 05
Launch, redirect and monitor
We map old URLs to new ones, carry over metadata and structured data, configure analytics and Search Console, deploy through the pipeline and watch errors after go-live.
Technology
Technology we use
Chosen per project for fit, maintainability and your team's ability to own it.
Frontend
- Next.js
- React
- TypeScript
- Tailwind CSS
- Storybook
Backend and data
- Node.js
- NestJS
- Laravel
- PostgreSQL
- MySQL
CMS and commerce
- WordPress
- WooCommerce
- Stripe
Hosting and delivery
- Vercel
- AWS
- Docker
- GitHub Actions
Use cases
Where it makes the biggest difference
Service and portfolio website
A WordPress site for a contractor or design studio, organised around services, completed projects and enquiry forms, which the client's own team keeps up to date.
Next.js front end for an existing WordPress site
A slow theme replaced by a Next.js front end that reads content through the WordPress API, while editors keep publishing in the admin they already know.
Booking and scheduling application
Availability, deposits, confirmations and reminders managed in one web app, with a staff view for changes, cancellations and capacity.
Online estimate calculator
An interactive estimator that prices a job from a few answers, with the pricing rules held on the server and each completed estimate passed to sales as an enquiry.
Searchable listings site
Property, venue or provider listings with filters, map views and enquiry forms, rendered so that every listing page can be indexed and shared.
Help centre and documentation site
Guides and articles generated as static pages from structured content, with site search, version history and a simple prompt asking whether each page helped.
Industries
Industries we apply this to
Why Softweb Planet
Why teams choose us for this work
Websites are where we started
Softweb Planet began with websites and digital marketing, so page structure, analytics events and enquiry routing are designed in rather than left for another agency after launch.
Interface and API designed together
One team builds the screens, the API routes and the database schema, so data shapes, caching and validation rules are agreed once instead of negotiated between suppliers.
A preview URL for every change
Each pull request deploys to its own preview address, so at every one-to-two-week review your named lead walks you through real pages on your own phone, not a static mock-up.
Launch treated as engineering work
Our DevOps engineers configure hosting, backups and error monitoring, and redirect maps and analytics events are tested on staging, so go-live follows a checklist.
What you can expect
- Pages that load quickly on mobile networks and follow accessibility good practice
- Content and landing pages your own team can publish without a developer
- A typed, tested and documented codebase that new developers can pick up
- Relaunches with every indexed URL redirected and search performance watched afterwards
Case studies
Related work
Delivered projects connected to this service.
Web Application Development FAQ
Frequently asked questions
Choose WordPress when the site is mainly content that a marketing team updates every week, and Next.js when you need custom interfaces, logged-in features or tight control over performance. WordPress brings a familiar editor and a large plugin ecosystem, but every plugin adds maintenance and security work. Next.js gives full control of markup and rendering, but editors need a CMS connected to it. We recommend one after discovery, based on who edits the site, what it must integrate with and who maintains it.
A website mainly presents information and drives enquiries, while a web application lets signed-in users do work: manage bookings, view data, submit requests or run reports. Web applications need authentication, permissions, a database and business logic on the server, which makes them more involved to design, test and secure. Many projects sit between the two, such as a marketing site with a client portal attached.
Yes. This setup is usually called headless WordPress: editors keep the WordPress admin, while a Next.js front end fetches content through the WordPress REST API and renders fast static or server-rendered pages. It suits sites that need custom interactions or stricter performance than a theme allows. The trade-offs are two systems to host, previews that need extra setup, and page-builder or form plugins that no longer control the front end. For a simple brochure site, a well-built theme is usually the better choice.
Web development cost depends mainly on the number of distinct page templates or screens, whether content and designs are ready, and how much happens behind a login. A WordPress site built from a defined set of templates is a far smaller job than a web application with user roles, payments and integrations. Extra languages, migration of existing content and accessibility testing also add effort. After discovery we give a fixed quote for the first release, plus expected hosting and licence costs.
Timelines depend most on scope and on how ready your content and decisions are. For websites, late copy and images are the most common cause of delay, so we agree a content plan at the start. A well-defined marketing site or a small first release of a web application is typically measured in weeks, while larger portals ship in phases. Preview links every one to two weeks let you reprioritise features as you see real screens.
It can, so a rebuild needs a planned migration rather than a straight swap. We crawl the current site and export its ranking pages from Search Console, then point each old URL to its new address with a permanent redirect. Page titles, internal links and structured data are carried across, and the new site is crawled on staging to catch broken links before launch. Afterwards we watch Search Console closely, because positions often move for a few weeks while search engines reprocess the site.
Yes. WordPress sites are editable from day one, and we set up page templates and reusable blocks so editors can build new pages without breaking the design. For Next.js builds we connect a content management back end with structured content types, previews and scheduled publishing. We also run a handover session and write short guides for the tasks your team performs most often.
We set performance budgets at the start and check them on every build. In practice that means server rendering or static generation where possible, optimised images and fonts, minimal client-side JavaScript, caching at the edge and efficient database queries behind the API. We measure Core Web Vitals on real mid-range phones and throttled connections, not only on a developer's laptop.
We treat WCAG 2.2 level AA as our working standard and check it during development rather than at the end. That means semantic HTML before ARIA, focus that moves correctly when dialogs open or routes change, form errors announced to screen readers, and custom widgets such as date pickers that work by keyboard alone. Automated checks run in the pipeline, and key journeys are tested manually with screen readers. For a formal audit, we work alongside your chosen auditor and fix what they find.
We design against the OWASP Top 10 risks from the first sprint. In practice that means server-side validation and parameterised queries, output encoding and a Content Security Policy against cross-site scripting, CSRF protection, secure HttpOnly session cookies and rate limits on login and contact forms. On WordPress we keep plugins few and vetted, require two-factor sign-in for administrators and apply updates promptly. Dependency scanning in the pipeline flags vulnerable packages before they are released.
We build the right-to-left version into the same codebase rather than as a separate site. Layouts use CSS logical properties so spacing and alignment flip automatically, icons that imply direction are mirrored, and Arabic or Urdu fonts are chosen for legibility at small sizes. Forms accept mixed English and Arabic input, and the CMS lets editors manage each language side by side. Each language gets its own URLs, so every version can be indexed in its own market.
Your organisation should, and we set projects up that way. The domain and DNS stay registered to you, hosting runs in your Vercel, AWS or other account, and the code lives in a repository you own. Administrator access to WordPress, analytics and Search Console is created under your company email, with our access added as separate users you can remove. We document the setup, so another developer could take over without needing anything from us.
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