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Frontend development

From design to pixel-perfect code

We’re a team of experienced frontend developers who specialize in building fast, reliable, and responsive user interfaces.

We turn static designs into fully functional, production-ready frontends – clean, semantic HTML, CSS, and JavaScript code that’s thoroughly tested and ready for backend integration.

But our work goes beyond coding. We analyze, advise, and collaborate – sharing ideas and best practices to make sure your digital product performs beautifully on every device.

Need a reliable tech partner? Let’s talk.
How we work
Our frontend development process is clear, collaborative, and detail-oriented – from transforming designs into code to optimizing performance and accessibility across all devices.
From design to implementation

We provide complete frontend development support – from UX audits and prototyping to UI design and full interface implementation.
Our goal is to create responsive, user-friendly, and visually consistent digital experiences that perform flawlessly across all devices.

If you already have designs prepared by another team or agency, our developers can seamlessly take over and turn your files into a clickable, production-ready interface.

Read our article for designers on “how to prepare UI and UX designs” for faster, smoother frontend development.

Frontend development technologies

Our process is built on HTML, CSS, and JavaScript, supported by modern frameworks like Vue.js and Angular.
This allows us to create fast, scalable, and reliable interfaces that look and perform perfectly on every device.

We use both manual and automated testing to ensure top quality and performance.
Tools such as Google PageSpeed Insights and BrowserStack help us verify that every layout works consistently across browsers and screen sizes.

Following a mobile-first approach, we make sure every page is fully responsive, accessible, and optimized for smooth use on smartphones, tablets, and desktops.

Accessibility and compatibility

We ensure that every interface displays correctly across browsers and devices.
Layouts and elements automatically adapt to different screen sizes, providing an intuitive and consistent user experience.

Our frontends are also tested for WCAG compliance, meeting the latest accessibility standards.

Read our related articles: “WCAG compliance: introduction” and “WCAG guidelines – levels and criteria

Performance and reliability

We analyze rendering times and optimize HTML, CSS, and JavaScript to make sure your website loads fast and runs smoothly.
Our expertise and tooling guarantee top performance and excellent user experience.

Every project includes a 12-month warranty – any issues discovered during this period are resolved promptly and free of charge.

Let's talk
Jakub Kozak
Jakub Kozak
Co-founder, Head of technology
Need a reliable tech partner? Let’s talk.
Smultron Web Development
12 Slawkowska Street
31-014 Krakow, Poland
TAX ID: PL6762482785