Codexium

Custom web application development company in Sri Lanka

When off-the-shelf software does not fit how your business works, we build the system around your workflow: customer portals, dashboards, marketplaces, booking platforms and internal tools with role-based access, integrations and reporting.

Why Codexium

A team that owns the outcome.

  • Built around your workflow, not the other way round
  • Modern stack: Next.js, Spring Boot, PostgreSQL
  • Integrations with payments, APIs and existing systems
  • Source code, documentation and support included
What you get

What we deliver.

  • Customer and partner portals

    Secure logins, account areas, document sharing and self-service for your customers or agents.

  • Dashboards and internal tools

    Replace spreadsheets with role-based systems for operations, sales, HR or inventory.

  • Marketplaces and booking platforms

    Listings, search, online payments and admin tools for multi-vendor or booking businesses.

  • Integrations and APIs

    Connect your app to payment gateways such as PayHere, accounting tools and third-party services.

Services

What we build.

  • Custom web applications

    Portals, marketplaces and dashboards built around your workflows, with role-based access.

  • Mobile apps

    Cross-platform iOS and Android apps in Flutter, polished and store-ready.

  • Website design & UI/UX

    Fast, SEO-ready websites and interfaces designed in Figma and built in Next.js.

  • Cloud & servers

    VPS setup, CI/CD, backups, SSL and monitoring that keep you fast and online.

  • Maintenance & support

    Updates, fixes and new features long after launch, bundled with hosting.

FAQ

Common questions

What is a custom web application?

It is software built specifically for your business processes and users, delivered in the browser. Unlike a template or off-the-shelf tool, it does exactly what you need and can grow with you.

How much does custom web application development cost in Sri Lanka?

Cost depends on features, user roles, integrations and design. We start with a discovery workshop and then send a fixed-scope quotation, often splitting the work into phases so you can launch earlier.

How long does it take to build a web application?

Smaller systems can launch in a couple of months, while larger platforms are delivered in phases. You see working demos along the way, not only at the end.

Can you improve or take over an existing system?

Yes. We review the current code and infrastructure, then fix, extend or rebuild the parts that need it.

Who owns the source code?

You do. We hand over the full source code and documentation when the project is delivered.

Have a project in mind?

Tell us what you are planning. We reply within one business day with next steps and a free consultation slot.