What We do

Our specialty is front-end development with React. That's our mastery and something we love the most. However, we often handle full-stack JS development with Express.js or Serverless to build APIs powering our web apps.

React.js Web Apps

React Web Apps

Building a React web app or updating an existing one?

We use the latest development practices to create future-proof, performance optimized code ready for scale. From Hooks to Redux or Storybook.

Our extensive QA covers everything from tests to user testing. We create more than a modern interface, but the one optimized for user experience.

Shopify Apps

Shopify Apps

Creating a Shopify App for your business? Or need custom features for a store?

We use Shopify GraphQL API to create any features you need with server-less architecture for limitless scalability.

We also leverage Embedded App SDK powered by React for seamless integration into Shopify admin panel and easy management.

Agency Partnership

Agency Partnership

Our services are the perfect match for your agency.

We deliver the development expertise to create a lot of value for your customers, and you can monetize it via one-time projects or monthly retainers.

Already have agency partnerships? We'll be a breath of fresh air. Our result-oriented culture and project management skills are infectious.

Already Helped 100+ Clients

We helped a variety companies from successful startups with an investment from Mark Cuban on SharkTank (Chapul) to huge international brands (MAM Baby) or the largest watch retailer in Europe (Watches2U).

Why our clients love us? It’s simple! We help them build web apps that drive engagement and improve their business KPIs. Our work is exceptionally results-oriented. But don’t just take our word for it…

left-quote (1)
John and his team delivered top-notch service. He provided patient and consistent communication throughout the redesign and launch of a ground-up website. Most importantly John has always done exactly what he's promised - usually more.
Chris Lesser
CEO of Union Garage NYC

Our Approach

It's not just about building web apps. We'll help you get the most effective solution that enables your userbase and business growth. You'll enjoy working with us as much as we enjoy building your web app.

Latest Development Practices

We always stay on the top of new features and libraries to make sure your web app pushes the limits of what's possible and stands the test of times.

User Experience & Accessibility

It's not only about great design but creating easy to follow paths to achieve users' goals. Our solutions are ADA compliant to become accessible for everyone.

Performance & Scalability

We aim for your success. Our source code is always written with a focus on growing your web app to millions of users and adding new features on the way.

Data-driven Approach

The combination of data analysis, UX research, and surveys helps us find the hidden gems in your user behavior and improve your web app engagement.

QA & Testing

We got you covered. Our quality assurance includes everything from unit to user testing to evaluate any potential issues prior and even after the big launch.

Project Management Skills

We meet our deadlines. You'll always stay in sync with the current progress, and we leave enough space for agile changes to the scope as needed.

About Us & You

Hi there! I’m John, the founder of Pixelter and the lead developer. There is one thing I’m passionate really about – building the best user experiences.

John Komarek

I created my first website at age 11, and I've spent the last 18 years perfecting the skills required to develop the next generation of progressive web apps.

In fact, over the last couple of years, we have helped more than 100 businesses build and improve their web app engagement by up to +276.6%.

How did we do it?

We combine our development skills with user data analysis, UX, and psychology to build web apps that users fall in love with and keep coming back.

Based in London, UK and working with clients from the US, UK, and Singapore, we'll become the development team that helps you transfer ideas to polished products.

John Komarek
Founder & Lead Developer