Development

Online Store Development for Niche and Large Catalogs

In online store development, what decides the outcome is how much the catalog has to carry, and design comes second. Two hundred items fit into a simple structure; a hundred thousand call for faceted filters, links between product variants, and dedicated decisions about speed, or shoppers simply can't find the product. That's why the pages below are grouped by the question people arrive with: what I sell, how I sell it, on which platform, and whether something already exists. The deciding question is usually the third one: changing platforms is expensive, so it's better to choose one for how the store will work two years from now. The first review of your project is free.

How it works

What goes into building an online store, from catalog to launch

  1. Catalog and shopper journey

    We start with the catalog, categories and the shopper's path from the first page to placing the order.

  2. The store connects to your records

    Products, stock, payment and delivery connect to your accounting and services, so data is not typed in by hand.

  3. Launch and handover

    The site goes live on your domain and hosting, the result is handed over by an acceptance act, and access is registered to you.

The scope depends on the platform, catalog size and integrations. We give a staged estimate after a free audit.

Largest catalog
115,456
items
a underwear store; measured on the live site, August 2026
Task groups
8
niche, sales mechanics, platform, migration, markets, logistics
First review
Free
1–3 business days, with an answer on which platform fits your catalog
Warranty on the work
30
days
from the day the acceptance act is signed; errors on our side are fixed free of charge

By product niche

28

By sales model

5

Selling mechanics

21

Delivery and logistics

3

Markets and channels

6

By platform

3

Existing store: migrate or rebuild

7

Other

1
Who it's for

Situations where this service delivers results

Scenario 1 of 4

Your products are specialized, and a standard template can't show them

Auto parts need lookup by vehicle, footwear needs size charts, power tools need battery compatibility. In niches like these, the store is built around how the shopper narrows down the choice, and the filters decide whether they ever reach the cart.

We'll review your situation in a free audit
What's included

Complete list of work and what you get as a result

  • A platform decision for your catalog and sales model, with an explanation of why this one and what it won't be able to do
  • A catalog structure and filters built around how shoppers narrow their choice: categories, attributes, links between product variants
  • A checkout that's finished end to end: shipping, payment, statuses, and customer notifications at every step
  • An admin area where your manager handles orders and products on their own, without a developer
  • A technical foundation for search: clean URLs without duplicates, product markup, a sitemap, fast catalog pages
  • An end-to-end test before handover, from the product page to a paid order and a shipping label
  • Handover under an acceptance act and a 30-calendar-day warranty on the work performed
Process steps

Transparent stages with approval at every step

  1. Reviewing the catalog and sales model

    1–3 days

    How many items, how many attributes, how shoppers search, whether there's wholesale and multiple warehouses. This is where the platform gets chosen. Changing it later is expensive, and this decision matters more than any other on the project.

  2. Catalog structure and prototype

    5–15 days

    We design the categories, filters, and product page. In large catalogs this is the longest stage: the way filters are set up decides whether someone finds a product in two steps, and whether thousands of duplicate pages end up in the index.

  3. Development with interim reviews

    depends on scope

    We build in parts and show progress on a live environment. Payment, shipping, and data exchange are connected along the way, since they need to be tested together with everything else rather than bolted on at the end.

  4. Data migration, launch, and handover

    3–10 days

    We move the products over, set up redirects from the old URLs, run the end-to-end scenario, and hand over access. The 30-calendar-day warranty starts on the day the acceptance act is signed.

When this service isn't right

What's not included — so there are no surprises at delivery

  • Promises about revenue or conversion rates: the store affects whether a visitor gets to payment, not demand, pricing, or how your managers work
  • Filling the catalog with products and photos unless agreed separately, since the scope only becomes clear after we see your files
  • A guarantee that search rankings will carry over one-to-one during migration: we set up redirects and keep the URL structure, but search results don't depend on us alone
  • Work with products that have no SKUs or attributes: marketplace exchange and filters don't function on that data, so it has to be cleaned up first
  • Design "like the competitor's" without understanding why they did it that way: copying someone else's decisions along with their mistakes gets you nowhere
Measurements

Measured on live sites

These figures come from case studies on live sites: what was measured, when, and where it can be seen, with the measurement method described in each case.

product listings in the catalog
115,456
online underwear store · Measured August 1, 2026
View case study
products in the catalog
54,302
online tactical and military gear store · Measured July 31, 2026
View case study
unique URLs in the sitemap
164
Ukrainian non-combustible panel maker's website · Measured August 1, 2026
View case study
Demo

Your catalogue on a phone screen

This is how your store can look on a phone: a collection banner, popular products and a cart one tap away. Tap “Add to cart” and the counter in the header updates, just like in a real store.

  • Collection bannerThe first screen shows what is new, not a logo.
  • Product cardsPhoto, price and a button — no extra page to open.
  • One-tap cartThe counter in the header updates instantly, like in a real store.
Stores in the portfolio
This is a demo interface, not a client's store. Live projects are in the portfolio.
SHOP
New collectionAutumn / WinterExplore
PopularAll products ›
  • Essentials Hoodie1 290 ₴
  • Urban Backpack1 490 ₴
  • Classic Cap690 ₴
  • Basic Tee590 ₴
  • Street Sneakers2 390 ₴
  • Active Shorts890 ₴
FAQ

Most frequently asked questions — with concrete answers

Which platform should I choose?

The answer comes from your catalog and sales model, and popularity has little to do with it. We work most often with OpenCart because it handles large catalogs well and allows deep customization; WooCommerce makes sense when the store is part of a content site; a custom platform is worth it when the sales logic is so unusual that an off-the-shelf solution would have to be broken to fit. In the review we tell you what suits your case, and why the alternatives don't.

I have tens of thousands of products. Will the store handle that?

Yes, large catalogs are a distinct part of our work: the largest of the live stores has 115,456 items. But size changes the approach: you need faceted filters, well-planned page URLs, and work on speed. A store with two hundred products and one with a hundred thousand are different projects, even if they look the same from the outside.

What happens to my search rankings if the store is migrated?

The main risk of a migration is losing URLs rather than losing data. So migration starts with a list of existing pages and a redirect map: every old URL has to lead to its matching new one. That way rankings are mostly preserved, though a dip lasting a few weeks is possible, and promising there won't be one at all would be untrue.

Can I move from Prom or Shopify to my own site?

Yes, and it's a common request. On your own site you don't pay a commission per order, you can work freely on search, and you don't depend on the platform's rules. The difficulty isn't moving the products. Part of the traffic on the marketplace belongs to the marketplace, not to you, and that part will have to be built up again.

Can wholesale and retail run in the same store?

Yes, through a separate account area with its own prices, minimum order quantities, and payment terms. But this has to be planned from the start: adding a full B2B mode to a finished retail store usually costs more than building it in from day one. If wholesale is in your plans, mention it during the review.

How long does it take to build a store?

A niche store with a few hundred items takes a few weeks; a large catalog with data exchange and several sales channels takes months. We count the timeline in business days from the moment we have access, products, and materials. The most common cause of delays is waiting for the catalog from the client, more often than development itself.

Who is responsible for adding the products?

Usually the client, or it's agreed separately. If you have supplier price lists, we set up the import and ongoing stock updates, which is cheaper and more reliable than manual entry. But if the data has no SKUs or attributes, it needs to be cleaned up first: on a catalog like that, neither filters nor marketplace exports will work.

What does turnkey online store development include?

A catalog with a category structure and filters, a product page, cart and checkout, payment and shipping through ready-made modules, an admin area for orders, product import if your products are in price lists, basic technical preparation for search, and deployment to your hosting. We run the project from the review to launch, while the domain, hosting, and service accounts are registered in your name. Product descriptions and photos, promotion, advertising, and an exchange with your accounting system are discussed separately. We write the boundaries into the contract before we start.

How do I start an online store from scratch?

With your product range and where the product data comes from: your own warehouse, supplier price lists, or dropshipping. That determines how prices and stock will be updated, which in turn decides the platform and how much manual work there will be every day. Next come payment, shipping, and your business registration details (FOP or TOV) for the payment provider: connecting takes time, and without it the store can't accept money. Design comes after that. During the free catalog review we'll tell you what can be transferred automatically and what will have to be done by hand.

Who will handle promoting the store after launch?

Whoever you choose: us, you yourself, or another contractor. The access and accounts are yours, so switching isn't complicated. What matters more is laying the groundwork during development: a category structure built around search queries, clean URLs without duplicates, filters that don't spawn thousands of identical pages, and a feed for shopping campaigns. Fixing these after launch costs more than getting them right at the start. Promotion itself, SEO or advertising, is separate work and isn't part of development.

Not sure which service is yours?

Describe the task in your own words — we will tell you where to start and whether you need what you came for. If you do not, we will say so.

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