What technologies do you build web apps with?

We work with modern, well-supported stacks, typically React and Next.js on the front end with Node and cloud-native services behind them, chosen to fit your product rather than a fixed template.

Yes, completely. You get the full, documented codebase with no lock-in to us.

Can you rebuild or improve an existing web app?

Yes. We modernise, extend or rebuild existing applications, and can join an existing codebase or team.

How do you keep the app secure?

Security is designed in from the start, and the same team runs penetration tests, so your app is built and tested for real-world attack under one roof.

How long does a web app take to build?

A focused first release is typically a few weeks; larger platforms run in visible cycles. We agree scope and timeline after a free scoping call.

How much does a web application cost?

It depends on the features, integrations and scale involved. We give a fixed, costed plan after a free scoping call, so there are no surprises.

Web Application Development

Web applications built to production standard

A web application is only as good as the day it holds up under real traffic. At Xium Labs we design and engineer web apps that are fast, secure and built to scale: customer portals, SaaS platforms, dashboards and internal tools that run reliably in the browser and on any device. Because we are also a security team, every app is hardened as it is built rather than patched after launch, and you own every line of the code.

Part of our product development practice.

What is web application development?

It is the end-to-end delivery of software that runs in the browser: the interface your users see, the APIs and databases behind it, and the cloud infrastructure that keeps it online. We build responsive front ends, robust back ends and the integrations that connect them to your existing systems, on modern, cloud-native foundations that scale from a first release to enterprise load.

Why build your web app with Xium Labs

Responsive by Default

Interfaces that work on every screen, from phone to desktop, with no compromise on speed.

Secure from Day One

Built and tested by the same team that runs our penetration tests, so weaknesses are caught early.

Built to Scale

Cloud-native architecture that grows with your traffic without a costly rebuild.

Full Code Ownership

Clean, documented code that is yours, with no lock-in to us.

Fast, Visible Delivery

Short build cycles with working software you can review early and often.

Ongoing Support

Maintenance, monitoring and new features whenever your product needs them.

What We Build

SaaS Platforms

Multi-tenant products with billing, roles and analytics built in.

Customer Portals

Secure, self-service portals for your customers and partners.

Admin Dashboards

Data-rich dashboards that give your team clarity and control.

Progressive Web Apps

App-like experiences that install and work offline in the browser.

Internal Tools

Bespoke tools that replace spreadsheets and manual processes.

APIs & Integrations

The connective tissue that links your app to the systems you rely on.

How We Build Web Applications

Every web build follows a clear, transparent path, so you always know what is happening and why:

Discovery: A free scoping call and a costed plan. We map the users, the features and platform your app needs and whether the numbers justify building.
Design: UX, architecture and a clear technical approach agreed before a line of code is written.
Build: Short, visible cycles with working software delivered early and often.
Launch: Production deployment with monitoring, documentation and a full handover. You own the code.
Secure: Penetration testing and hardening, so what you launched holds up against real-world attack.

Web Application Development illustration