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Online stores
Online stores built around your business
We build fast WooCommerce online stores, also with a custom React front end. They are suited to large catalogues, multiple markets and integrations with ERP, warehouses or suppliers.
What we focus on
- Fast loading
- Large catalogues
- ERP and warehouse integration
- Multiple markets and languages


Headless stores
A fast front end, with proven WooCommerce in the background.
For stores with a large catalogue, we build the customer-facing front end in React and leave search to a dedicated search engine. WooCommerce in the background remains the tool your team already knows.
Customer front end
React + Vite
Fast page loads and smooth browsing, on phones too.
Search engine
OpenSearch / Elasticsearch
Instant search and filters across tens of thousands of products.
Store management
WooCommerce
Products, orders, payments and delivery in a familiar environment.
Stores built on this architecture
VisitUgodneGume.com (opens in a new tab)UgodneGume.com
A catalogue of more than 35,000 tyre models with search by size and season.
VisitVulkanizerstvo Groš (opens in a new tab)Vulkanizerstvo Groš
An online tyre store with appointment booking for fitting.
VisitNotesniki.si (opens in a new tab)Notesniki.si
Computer equipment with search by model, brand, SKU or EAN code.
VisitUgodneGume.hr (opens in a new tab)UgodneGume.hr
The same architecture, adapted for the Croatian market.
Store and warehouse
A store fed by a central warehouse that loads for customers in an instant.
Central B2B warehouse
Products, prices and stock
WooCommerce
Orders, payments, delivery
Custom cache
Pages prepared in advance
Customer
Fast loading
WooCommerce + central warehouse
One stock for every sales channel
We connect the online store to a central B2B warehouse, from which it automatically receives products, prices and stock. With our own caching system, pages are prepared in advance, so they load quickly for customers even with a large catalogue.
How the central warehouse worksWhat it includes
- Connecting the store to a central B2B warehouse
- Automatic updates of products, prices and stock
- Custom caching system for fast loading
- Optimisation for Google PageSpeed
More stores
Stores we build and maintain.
A selection of other online stores we have worked on through development, customisation or maintenance.
- Otroška trgovinaotroska-trgovina.com(opens in a new tab)
- Depolesdepoles.com(opens in a new tab)
- Trebuščektrebuscek.si(opens in a new tab)
- ZipperProzipperpro.si(opens in a new tab)
- Slobayslobay.si(opens in a new tab)
- Avtonetavtonet.online(opens in a new tab)
- Didaktične igračedidakticne-igrace.com(opens in a new tab)
- Scalascala.si(opens in a new tab)
- Krunokruno.si(opens in a new tab)
- Avtodeli123avtodeli123.si(opens in a new tab)
- Deli Opeldeli-opel.si(opens in a new tab)
- Solemiosolemio.si(opens in a new tab)
Integrations for online stores
A store that issues invoices, prints labels and updates stock on its own.
The integrations we most often build for online stores. We adapt each one to the way you work and the systems you already use.
Accounting systems
We connect your online store to accounting systems such as Vasco, Minimax, eRačuni and others.
- Automatic transfer of orders and invoices to accounting
- Faster invoicing and tax reporting
- Accurate business data without manual entry
For example:VascoMinimaxeRačuniDelivery services
Integration with delivery services such as GLS, Pošta Slovenije, DHL and others makes the whole delivery process easier.
- Print labels directly from the order list
- Parcel tracking and automatic status updates for customers
- Less time preparing shipments and a better customer experience
For example:GLSPošta SlovenijeDHLCard and online payments
We let customers pay by card and other methods through payment systems such as Stripe, Bankart, PayPal and others.
- Secure payment processing that meets current standards
- Support for a wide range of payment methods
- More trust and convenience for your customers
For example:StripeBankartPayPalStock management and synchronisation
We introduce stock management in your online store that is connected to your warehouse and suppliers.
- Automatic stock synchronisation between the store and the warehouse
- Stock that follows demand, with less surplus
- Up-to-date supplier data on product availability
Data imports and price synchronisation
We simplify data management with imports and synchronisation from your suppliers' systems.
- Automatic import of price lists, product specifications and stock
- Price and promotion synchronisation in real time
- Less work managing a large number of products
- Check an integration
Using a different system?
This list is not exhaustive. Send us the name of the system or its documentation and we will check how to connect it.
How we work
From reviewing your catalogue to a store that sells.
We build the store step by step, so the launch holds no surprises and sales don't stall during the redesign.
1. Review and plan
We review the catalogue, the way you sell, payments, delivery and the systems the store has to work with.
Result: Solution proposal
2. Design
We design the key pages, from the home page and categories to the cart and checkout.
Result: Approved design
3. Development and integrations
We build the store, search and filters and connect it to your ERP, warehouse, payments and delivery.
Result: A working store
4. Migration and launch
We migrate products, customers and orders, set up redirects for search engines and test the store with you.
Result: Store live
5. Maintenance and growth
We take care of updates, security and speed, and develop the store further as your business grows.
Result: Reliable operation
Client testimonials
What the store owners we work with say.
Translated from Slovenian.
FAQ
What store owners most often ask us.
Have another question? Write to info@isaac.si.
When does a headless store with a React front end pay off?
When the store has a large catalogue, complex filters or a lot of traffic, and a classic theme cannot reach the desired speed. For smaller stores, classic WooCommerce is often entirely sufficient. During the review we advise you which path makes sense for you.
Will we be able to manage the store ourselves?
Yes. You manage products, orders, coupons and content in WooCommerce, also in a store with a React front end.
Can you migrate our existing store without losing search rankings?
Yes. We migrate products, customers and orders, and connect old URLs to the new ones with redirects, so search traffic is preserved.
Can the store connect to our ERP or warehouse?
Yes. We connect it to your ERP, accounting software, warehouse or suppliers, so stock, prices and orders are transferred automatically.
Can we sell in several markets and languages?
Yes. A store can have several languages and currencies, or you can run separate stores for individual markets fed from the same catalogue.
Who looks after the store after launch?
We offer maintenance with updates, backups, uptime monitoring and technical support, and develop the store further as needed.
How much does an online store cost?
It depends on the size of the catalogue, the design and the integrations with other systems. After the review you receive a written quote with a clearly defined scope.
Let's talk about your store
Want a faster store or less manual work with orders?
Tell us what you sell and where your store creates the most work today. We will suggest concrete improvements.