# CubeCart Development UK: Mods, Upgrades and Migrations

Source: https://dijituldevelopments.co.uk/cubecart-development/
Updated: 2026-10-10

> dijitul has worked with CubeCart longer than any other shop platform: it was our first. We build CubeCart 6 plugins and mods, upgrade older stores, fix PHP 8 problems and migrate shops on or off CubeCart, having built CubeCart to OpenCart and osCommerce to CubeCart migration tools. Every job is a fixed-price quote after a free chat.

## Problems this solves

- Your shop still runs CubeCart 4 or 5 and the host is retiring old PHP
- A mod written years ago is the only reason your checkout works, and nobody understands it
- You want to stay on CubeCart but need a feature the extensions marketplace does not have
- You are thinking of leaving CubeCart but are worried about losing customers and rankings
- Stock and orders are copied between CubeCart and your accounts by hand

## Key facts

- CubeCart was dijitul's first ecommerce platform, and we built and sold CubeCart mods
- We built migration tools for CubeCart to OpenCart and osCommerce to CubeCart
- CubeCart 6 is open source under GPL-3.0, with its code on GitHub at cubecart/v6
- CubeCart 6.4.6 added PHP 8 support, according to the CubeCart forums release notice
- CubeCart 6 skins use Smarty templates; plugins extend the core through hooks
- Fixed-price quote after a free chat

## CubeCart was our first shop platform

Before OpenCart, WooCommerce or Shopify were common choices, CubeCart was where dijitul started building ecommerce. We wrote mods for it, supported shops running on it, and built migration tools in both directions: osCommerce to CubeCart for shops moving onto it, and CubeCart to OpenCart for shops that later outgrew it.

That history means we know the platform's quirks, from older versions through to CubeCart 6. If you have a CubeCart store that works and you would like it kept working, we are a safe pair of hands. If you think it is time to move on, we can do that too, without losing what you have built up.

## CubeCart 6 today

CubeCart 6 is open source under the GPL-3.0 licence, with its code published on GitHub at `cubecart/v6`. It is still maintained, with regular point releases. A few facts that shape development work on it:

- **PHP 8.** According to the CubeCart forums, version 6.4.6 introduced PHP 8 and 8.1 support. Stores on earlier 6.x releases, or on CubeCart 4 or 5, generally need upgrading before they will run on a supported PHP version.
- **Skins** are built with Smarty templates, so storefront changes can be made in the skin without touching core PHP.
- **Plugins** extend CubeCart through its hook system, which lets custom code run at defined points in the core without editing core files. CubeCart also supports admin-managed code snippets for small changes.

We build in that grain: changes go into a plugin or the skin, never into core files, so you can apply CubeCart updates without losing your customisations.

## Typical CubeCart work

- **Upgrades:** moving an old CubeCart 3, 4 or 5 store onto the latest CubeCart 6 release, migrating products, customers and orders and rebuilding any mods that did not carry over.
- **PHP fixes:** making custom code and third-party plugins run cleanly on PHP 8.3 or 8.4.
- **Custom plugins:** trade pricing, delivery rules, product options with price and weight changes, custom reports, and checkout changes such as [UK postcode lookup](https://dijituldevelopments.co.uk/postcode-lookup-integration/).
- **Integrations:** sending orders and customers to Xero, Sage, QuickBooks or KashFlow, syncing stock from a warehouse system, and creating courier labels.
- **Imports:** loading supplier catalogues and updating stock and prices on a schedule.

## Leaving CubeCart without losing anything

Sometimes a store has simply outgrown CubeCart, or the business wants a platform with a bigger extension market. We have built CubeCart migration tools before, and the approach is the same now as then:

- Export products, categories, options, images, customers, orders and reviews from the CubeCart database.
- Map them to the new platform's structure, whether [WooCommerce](https://dijituldevelopments.co.uk/woocommerce-development/), [Shopify](https://dijituldevelopments.co.uk/shopify-development/), [OpenCart](https://dijituldevelopments.co.uk/opencart-development/) or a custom build.
- Map every old URL, including CubeCart's SEO-friendly URLs, to its new equivalent and set 301 redirects.
- Check counts and totals match, run test orders, then switch over at a quiet time.

Customer passwords usually cannot be moved between platforms because of different hashing methods, so we plan a friendly password reset email for returning customers. See [ecommerce migration](https://dijituldevelopments.co.uk/ecommerce-migration/) for more detail.

## Keeping a CubeCart store healthy

Plenty of CubeCart stores have traded quietly for a decade or more. The ones that keep going share a few habits, and we help owners put them in place:

- **Stay on the current 6.x release.** Point releases carry security fixes, so we apply them on a staging copy first, check custom plugins still behave and then update live.
- **Keep custom code out of core.** Any old mod that edits core files gets rebuilt as a plugin or moved into the skin, so the next update does not overwrite it.
- **Run a supported PHP version.** We aim for PHP 8.3 or 8.4 and fix anything that throws warnings along the way.
- **Back up the database and files** on a schedule, and test that a restore actually works.
- **Use HTTPS everywhere** and a payment gateway that keeps card data off your server entirely.

## Starting a CubeCart project

Send us your store address and tell us what you want: keep it running safely, add a feature, connect it to another system or move it elsewhere. We will look at the CubeCart version, PHP version, plugins and customisations, then give you an honest recommendation. After a free chat you get a fixed-price quote for an agreed scope. [Get in touch](https://dijituldevelopments.co.uk/contact/).

## What we deliver

- CubeCart 6 plugins and skin changes that use hooks and survive upgrades
- Upgrades from older CubeCart versions to the current CubeCart 6 release
- PHP 8 fixes for custom code and third-party plugins
- Accounting, stock and courier integrations
- Migration from CubeCart to WooCommerce, Shopify, OpenCart or a custom build, with redirects
- Migration onto CubeCart from older platforms

Technologies: CubeCart 6, PHP 8, Smarty, MySQL, Xero API, KashFlow API

## FAQs

### Do you still support CubeCart?

Yes. CubeCart was dijitul's first ecommerce platform and we still build plugins, fix PHP 8 problems, upgrade older stores to CubeCart 6 and connect CubeCart to accounting and stock systems. We also migrate shops on or off CubeCart.

### Can you upgrade our CubeCart 4 or 5 store?

Yes. dijitul moves older CubeCart stores onto the current CubeCart 6 release, migrating products, customers and orders, rebuilding essential mods as CubeCart 6 plugins and keeping URLs or redirecting them so search rankings are protected.

### Does CubeCart run on PHP 8?

Current CubeCart 6 releases do. The CubeCart forums record that version 6.4.6 introduced PHP 8 and 8.1 support. Older CubeCart versions and many old mods do not, so they need upgrading or patching before your host retires older PHP.

### Can you move our shop from CubeCart to WooCommerce or Shopify?

Yes. dijitul has built CubeCart migration tools before. We move products, customers, orders and reviews, map old URLs to new ones with 301 redirects and plan password resets for returning customers.

### Is CubeCart still a good platform?

For a straightforward shop that already runs on it, CubeCart 6 is maintained, open source and lightweight. Its extension market is smaller than WooCommerce or Shopify, so if you need lots of add-ons, moving may suit you better. dijitul will give you an honest view.

### How is CubeCart work priced?

We do not publish prices. After a free chat dijitul looks at your store and gives a fixed-price quote for the agreed work. Anything extra is quoted separately before it starts.

## Pricing and contact

Every project gets a fixed-price quote after a free initial chat and a short scoping stage. You own the code and the data. Book a free chat: https://dijituldevelopments.co.uk/contact/ · 01623 650333 · info@dijitul.uk