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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Many clients come to us with an out-of-date CS‑Cart version or a theme that is no longer supported.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
Three developers smiling at a code screen in a bright office

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 project
  1. 01

    Review

    Current version, theme, customisations, hosting and performance assessed.

  2. 02

    Recommendation

    Upgrade, optimise or rebuild, with the commercial reasoning for each option.

  3. 03

    Design or design support

    Store design created by us, or built to your designer's work.

  4. 04

    Development

    Custom CS‑Cart development, including marketplace and multilingual requirements.

  5. 05

    Optimisation

    Speed, search and conversion improvements across key templates.

  6. 06

    Testing and launch

    Payment, functionality and device testing before go-live.

  7. 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.

The Farm Marketplace CS-Cart store

What you get

Commercial outcomes

Talk to our team
  • 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 clients

  • The Royal Marsden Private Care
  • London Specialist Hospitals
  • K9 Jets
  • RealD
  • Private Jet Charter
  • IRIS
  • FDS Consult
  • F1 Authentics
  • Fire Design Solutions
  • Holemaker Technology
  • Tiles360
  • Be Safe Direct

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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  • Since 2002 · 300+ clients