29+ years • 400+ projects • integrated AI agent • 50+ expansions • code ownership • 90 experts
years on the market
turnover of our clients last year
built e-shops
expansions abroad
experts under one roof
Custom E-shop
A custom e-shop adapts to your business – not your business to the platform's possibilities.
A template solution is suitable for standard online sales. We design a custom e-shop according to your processes, customers, and growth plans – from UX and functionalities to ERP, CRM, warehouses, or other integrations.
Without the limits of ready-made solutions.
Ready for complex processes and integrations.
Designed to grow with your business.
BUXUS, Shopify Plus, or WooCommerce. We select the platform according to your business model and specific needs. We design the entire architecture and infrastructure so that the solution is ready for further growth.
From B2C cart to B2B pricing levels, ERP integrations, and real-time warehouses. For example, the solution for Slovart can handle up to 4,500 product changes daily.
A proprietary AI agent at the core of BUXUS and Shopify Plus monitors performance, conversions, and technical anomalies 24/7. You are immediately informed about problems and opportunities without waiting for a monthly report.
We have completed more than 50 expansions into the CEE and EU regions. We provide multi-currency, multi-language, and multi-warehouse solutions, including localized SEO and marketing.
The BUXUS platform has no transaction or licensing fees. Brands like Kondela, Feedo, and Slovart use it. We have completed more than 400 projects on it.
We know your business must operate without interruptions. We provide our clients with continuous support, monitoring, and stable operation of their e-commerce solutions.
Development, UX/CX, performance and brand marketing, SEO, analytics, and support 24/7. You get all key competencies under one roof, without the complicated coordination of multiple suppliers.
D2C
We design e-shops for manufacturers connected with ERP, warehouse, and production processes. We build them to handle brand growth and expansion into new markets.
International B2C
We know what it takes to sell in multiple countries. We handle languages, currencies, local price lists, warehouses, and specific functionalities of individual markets from one system.
B2B – Wholesale
We design solutions for extensive catalogs, individual pricing, order approvals, ERP integrations, and thousands of operations daily. We do not see B2B as a supplement but as a separate business process.
Commerce & Retail
We connect online sales with brick-and-mortar stores into one functional unit. Real stock levels, click & collect, returns, and loyalty programs work across all channels.
Watch video
50 +
International Expansion
400 +
development projects
We primarily focus on developing e-shops on our own e-commerce solution BUXUS, which we have been continuously developing and improving since 1999. It is a sophisticated and reliable platform ready for growth, scaling, and expansion, especially for medium and large companies.
Integrated AI agent directly in the core of the system continuously monitors performance, user behavior, and technical anomalies. Thanks to this, you can be sure that your e-shop operates without errors and unnecessary performance losses.
The globally popular e-commerce platform Shopify is the ideal choice for any business with the ambition to grow. At ui42 Shopify, we can perfectly tailor it to your needs – from a quick start with standard solutions to complex custom-made e-shops that will elevate your potential to the global market.
We are a Shopify Partner!
A robust solution on CMS BUXUS, which transformed TSS GROUP into a technological leader thanks to the uncompromising integration of ERP ABRA and full automation of purchasing processes in real-time.
A robust solution on the CMS BUXUS, which in real-time powers a gigantic B2C and B2B ecosystem across two markets and transforms technical complexity into a perfectly seamless experience.
Thanks to the ONE-STOP-SHOP approach of ui42, AI localization, and performance marketing, Kompava transformed a stagnant entry into Poland into a rocket-like growth, achieving more than a 420% increase in turnover.
We get to know your business, customers, and processes. We map ERP, CRM, warehouse, and necessary integrations and propose suitable technology, architecture, UX, and e-shop design.
We program the e-shop on the chosen platform and connect it with your systems – from ERP, CRM, and warehouse through payment gateways and carriers to other tools. During development, you have an overview of what is completed and what follows.
Before launch, we test the entire purchasing process, functionality, integrations, measurement, performance, and technical SEO. We then deploy the e-shop into production and oversee its smooth start.
The collaboration does not end with the launch of the e-shop. We ensure monitoring, technical support, and further development – from optimizations and new features to additional integrations or expansion into new markets.
Contact us
Are you interested in a customized e-commerce store?
Michaela Recht
Samuel Štassel
If we were to create a new e-shop again, we would choose ui42 again.
"We wanted to show that PSS is changing on the website as well. And not just through cosmetic changes or a change of website design. We wanted to have the new website firmly in our strategic hands and use it as a full-fledged and measurable sales channel. We are glad that we selected a company that helped us in this difficult task through a competitive process. We are looking forward to the new website and to continuing our cooperation with ui42."
ui42 is our reliable partner, with whom we always resolve all shortcomings and issues. It was the same during the server replacement, when we could fully rely on ui42, both with the selection of a new server and with the migration of all our e-shops to the new server.
When looking for a supplier for our website, we were searching for an agency that would work with us to create a cohesive team and wouldn't approach the collaboration in the typical agency-client manner. We needed the agency side to also understand our business, vision, and mission so that they could contribute equally to the development of the Voxberg website. At ui42, we met these expectations fully, as today, proposals and project briefs for further development no longer come solely from our side but also from ui42, which we highly appreciate.
"We would like to thank our colleagues from ui42 for their excellent handling of the migration to the new Feedo website, and that's not just from the perspective of technical SEO. Lazy load, next gen image loading, deleting old code, and the excellent handling of URL migration, are just a few of the things that are mainly reflected in the improvement of conversion rates, and thanks to which we have been hearing positive feedback from our colleagues and customers since the launch of the new website."
"Only a few external partners can fully keep up with the rapid growth that Dedoles has faced since the beginning of last year. Fortunately, ui42 is one of those who can handle this pace and can adapt to often rapidly changing needs. Thanks to this collaboration, the website, which is a key source of turnover, is the most stable element in our IT area."
Our long-term collaboration gained momentum in 2014 when we decided to solve the sale and distribution of our books exclusively through our own website in Slovakia. From our side, the request was to redesign the visuals and to implement B2C and B2B orders in real time - in online connection with our warehouse system. Gradually, we have gradually reached where we are today, and we take trouble-free operation for granted.
The prices for a custom e-shop with us start from €15,000. For more complex and B2B solutions, they are higher and depend on the number of integrations (ERP, warehouse, CRM), the complexity of processes, and the number of markets. On BUXUS, you do not pay transaction or license fees, so costs do not grow along with your turnover. Therefore, it is worth calculating the return, not just the delivery price. For example, the brand Kondela recouped the entire investment in the new e-shop from its revenues in just one month.
We will tell you the specific budget at the first consultation, free of charge and without obligation.
A boxed solution makes sense as long as you sell in a standard way, have one market, one price list, and make do with what the platform offers. Custom E-shop is worth it when the platform starts to hold you back: you need B2B pricing levels, integration with ERP and real-time inventory, more languages and currencies, or transaction fees cut into your margin as you grow. A simple test: if you bend your processes to fit the system instead of the other way around, it's time for a custom solution.
Yes, migration is a standard part of the project. We will transfer products, orders, customer accounts, and content, and the key is the URL redirect map – without it, migration will reduce organic traffic. During the Feedo migration, we addressed redirects, lazy load, and loading images in next-gen formats, and conversion rates increased after launch. Before deployment, we conduct a technical SEO audit and measurement so that you can see exactly what has changed after the switch.
Yes, B2B for us is not an extension of B2C, but a separate business process. We handle individual price lists and price levels, order approvals, extensive catalogs, and two-way integration with ERP. For TSS Group, we built a solution connected to ERP ABRA, which manages over 57 million prices for B2B customers and processes 93,500+ sold products monthly. For Slovart, the system processes up to 4,500 product changes daily in real-time.
The code is yours – with a custom e-shop, you are not locked to a single supplier or platform. You will receive documentation, access, and training for system management. BUXUS does not charge percentages from turnover or license fees, so your costs do not increase as you grow. At the same time, we have clients with whom we have been collaborating for more than 20 years – Slovart is an example of a 28-year-long digital transformation.
AI agent FLUIDUM operates as an analytical layer over the e-shop.
It monitors:
On the ecommerce platform BUXUS, it works directly with data in the system's core (without cookie restrictions), while on other platforms it functions as a diagnostic tool over available data.
Result: faster problem detection and more accurate decision-making.
FLUIDUM is a team of AI agents that oversees your digital business 24/7. In BUXUS, it is its native part, but we can connect it to any e-shop.
It connects data from e-shop, advertising, analytics, CRM, ERP, SEO, or UX, understands their contexts, and can alert, recommend, and act.
With ui42, you will have more than just a website; you will have a powerful tool, that supports sales, strengthens customer loyalty, and elevates your brand to a whole new level. Our e-commerce solutions facilitate a turnover of more than 400 million Euros annually. Schedule a free consultation with me and fill out the form at the bottom of the page.
CEO of ui42, Andrej Kajan
Choosing the right CMS is the foundation for the success of your project. There are many boxed and custom solutions on the market with varying degrees of customization. We have summarized and compared the most commonly used ones. So, which one is the most suitable for you?
At ui42, we combine strategy, creativity, technology, marketing, and AI into one entity.
We build brands and visual identities, create websites and e-shops, design UX and CRO, create creative content, and deliver measurable results through performance marketing.
Our solutions are enhanced by FLUIDUM – ui42's AI intelligence, which transforms company data into a competitive advantage.
Thanks to this, you gain a partner who can cover the entire digital ecosystem of your business – from the first contact with the brand to conversion.
Don't miss out on the latest news from the world of UX, programming, analytics, and marketing.
Thank you for subscribing!
What do you need help with?
Select all options that apply to you
The form has been sent successfully.
