INDEXIZ

OpenCart Services

OpenCart Customization & Extensions that Stay Upgrade-Safe

Custom OpenCart themes, OCMOD and event-based extensions, checkout changes and integrations for store owners who want more from OpenCart without hacking the core.

MJSWDTAKOpenCart stores customised by Indexiz
Extension buildOC 4.0.2
RequestFeature · FixExtensionOCMOD · EventsThemeTwig · ResponsiveCheckoutTested · Live
✓Extension installedOne-page checkout · 0 core edits
+22%checkout completion
150+OpenCart extensions built
40+Custom themes delivered
3.x & 4.xVersions supported
100%Core files untouched
What we do

OpenCart Customization Services

From a quick product page tweak to a complete bespoke module, we tailor OpenCart to the way you sell.

Custom Theme Development

Responsive Twig themes built from your design, or an upgrade of your existing theme with better performance and mobile UX.

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OCMOD & Event Extensions

Features delivered as proper extensions using OCMOD and the event system so core files stay untouched and upgrades stay simple.

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Checkout Customisation

One-page checkout, guest checkout tuning, custom fields, address validation and order flow changes that lift conversion.

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Payment & Shipping Modules

Local and international gateways, carrier rate modules, label printing and tracking integrated as native OpenCart extensions.

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Product & Catalogue Features

Configurators, bundles, bulk pricing, wholesale accounts, size charts and advanced filters.

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ERP, CRM & Marketplace Integrations

Stock, orders and customers synced with accounting, ERP, CRM and marketplaces through the OpenCart API and custom modules.

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Real use cases

OpenCart Customisation Work

Fashion

Custom theme and one-page checkout

A new Twig theme with size guides, wishlist and a single-step checkout built as extensions.

+22%checkout completion
Auto parts

Vehicle fitment search module

Make, model and year filtering across 60k parts with a compatibility table on every product.

3×search-to-cart rate
Wholesale

B2B pricing and ERP sync

Customer group pricing, minimum quantities and automatic stock and order sync with the ERP.

6 hrssaved per day
Why Indexiz

Why Indexiz for OpenCart Customisation

We have worked with OpenCart since version 1.5 and we know how to add real features without the hacks that make stores impossible to upgrade.

Upgrade-Safe Extensions

OCMOD, events and proper admin modules mean your customisations survive the next OpenCart update.

Performance Aware

Lean templates, optimised queries and caching so custom features do not slow your store.

Clean, Documented Code

Every extension comes with install instructions, settings and source so any developer can maintain it.

Full Service

Theme, extensions, integrations, upgrades and support from one team.

Our approach

Fit the Feature to OpenCart.

We look for the cleanest way to deliver each feature inside OpenCart’s extension system, keeping your store simple to run and cheap to maintain.

Our process

A Simple Path to Success

A proven process to turn your ideas into powerful digital solutions.

01

Store Review

We check your OpenCart version, theme and installed extensions for conflicts.

02

Design & Spec

We agree the design or feature spec and the extension approach.

03

Build & Test

We build on a staging copy and test with your products, payments and shipping.

04

Release & Support

We install on production, train your team and support the extension.

FAQ

Frequently Asked Questions

Answers to the questions we hear most often. Need more detail? Talk to our team.

No. We use OCMOD, the event system and proper extension packaging so your store can be upgraded and your customisations reinstalled cleanly.

Yes, as long as the theme is reasonably built. We review it first and tell you if a fresh theme would be cheaper in the long run.

We build for your current version and can deliver OpenCart 4 compatible versions. If you are planning to upgrade, we build for 4.x from the start.

Yes. Conflicting OCMOD and vQmod modifications are a common problem; we audit, resolve conflicts and consolidate where needed.

Simple modules start at a few days of work; larger features such as configurators or ERP integrations are quoted after a short review. You receive a fixed price before we begin.

Ready to customise?

Let's Make Your OpenCart Store Work the Way You Sell

Tell us what you need changed or added and we’ll send an approach, timeline and fixed quote.

Or schedule a free consultation

Serving organizations across the world.

PakistanHQ · Lahore
Saudi ArabiaRegion
UAERegion
United KingdomRegion
United StatesRegion