CS-Cart
CS‑Cart development & marketplaces
CS‑Cart development, upgrades and marketplace builds
CS‑Cart is a feature-rich ecommerce platform used by tens of thousands of stores worldwide, and it suits both conventional online shops and multi‑vendor marketplaces. ExtraDigital designs, develops, upgrades and supports CS‑Cart sites for businesses that want strong functionality out of the box with the freedom to customise the source code.
- CS‑Cart stores and multi‑vendor marketplaces
- Version and theme upgrades to maintain PCI compliance
- Multilingual and high‑volume stores
- Coded from the ground up rather than templated
Built to trade
Our CS‑Cart services
- Store design and development
- Multi‑vendor marketplace builds
- Version and theme upgrades
- Site optimisation for speed and search
- Multilingual development
- Support and maintenance
Many clients come to us with an out-of-date CS‑Cart version or a theme that is no longer supported. We have recent experience updating both to current releases so stores stay secure and compliant.
We can also work as the development partner behind a designer or agency, building to their designs without template constraints.
Discuss your store requirements
Why ExtraDigital
Where we add value
One UK team builds, upgrades and supports your store, from a single shop to a multi‑vendor marketplace.
- Upgrades and complianceCS‑Cart releases roughly four major updates a year. Keeping current protects PCI compliance and reduces security exposure.
- Multi‑vendor marketplacesMarketplace builds where multiple sellers list, manage and fulfil products under one storefront.
- Custom developmentSites coded from the ground up rather than assembled from themes, giving full control over design and functionality.
- Multilingual storesExtensive experience developing CS‑Cart in multiple languages, with native speakers handling translation.
- Speed and searchOptimisation work to keep stores fast and search engine friendly as catalogues grow.
- High-volume hostingAdvice and provision of ecommerce hosting suited to higher traffic and transaction volumes.
How we deliver
How CS‑Cart projects run
Every project starts with a review of the store you have, so you know whether to upgrade, optimise or rebuild before development begins.
Discuss your CS‑Cart project01
Review
Current version, theme, customisations, hosting and performance assessed.
02
Recommendation
Upgrade, optimise or rebuild, with the commercial reasoning for each option.
03
Design or design support
Store design created by us, or built to your designer's work.
04
Development
Custom CS‑Cart development, including marketplace and multilingual requirements.
05
Optimisation
Speed, search and conversion improvements across key templates.
06
Testing and launch
Payment, functionality and device testing before go-live.
07
Support
Support plans or ad-hoc maintenance to keep the store current.
Client results
What CS‑Cart work did for Farm Marketplace
Farm Marketplace · Farm supplies marketplace
- more item revenue than the same period a year earlier
497%
- more item revenue than the same period a year earlier
- more page views in the first two weeks of the redesign
30%
- more page views in the first two weeks of the redesign
Farm Marketplace is the UK's leading online marketplace for farm supplies, built on CS‑Cart. We helped complete its new CS‑Cart template, with a reorganised menu and search, then built search-led filters and brand pages so customers can narrow a vast catalogue down to the right product.

What you get
Commercial outcomes
- A store running a supported, compliant CS‑Cart version
- Faster pages and better search visibility
- A marketplace model that can add vendors without redevelopment
- Sales in additional languages and markets
- Fewer disruptions from unsupported themes and plugins
- A clear route for future development
Selected work
CS‑Cart stores and marketplaces

Marketplace
Numu Market
An English and Arabic multi‑vendor marketplace connecting agricultural suppliers with farmers across the MENA region.
CS‑Cart Multi‑Vendor · EN / AR

Online shop
F1 Authentics
An F1 memorabilia shop designed and built on CS‑Cart within Formula One's strict brand guidelines.
CS‑Cart · Design · Build

Ticket packages
F1 Experiences
The official site for F1 ticket packages, updated to be simpler to use and easier to manage behind the scenes.
CS‑Cart · UX · Custom functionality

Wine shop
Faulkner Wines
Support and development for three CS‑Cart sites, including a multilingual wine shop with delivery options and currencies by country.
CS‑Cart · Multilingual · Support
Selected clients
Good to know
Frequently asked questions
What is CS‑Cart best suited to?
Traditional online stores and multi-vendor marketplaces. It offers strong out-of-the-box functionality, a no-code layout manager and open access to the source code, so it can be customised heavily.
Our CS‑Cart version is out of date. Can you help?
Yes, and it is one of the most common reasons clients contact us. CS‑Cart releases around four major updates a year, and staying current matters for PCI compliance if you take payments online.
Can you work with our designer?
Yes. We do not rely on pre-existing templates or themes – CS‑Cart sites are coded from the ground up, so designers keep full creative freedom.
Can CS‑Cart handle multiple languages?
Yes. We have developed multilingual CS‑Cart stores and use native speakers for translation so content reads correctly in each market.
Do you offer ongoing CS‑Cart support?
We offer support plans and ad-hoc support, covering version updates, theme compatibility, optimisation and day-to-day fixes.
Still have a question?
Next step
Need CS-Cart development, an upgrade or ongoing support?
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