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E-Commerce Platforms & Shop Systems

OpenCart

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Panel rating · 6 judges · How to read the stars

Category median

Sovereignty: not determined

0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.

by OpenCart · www.opencart.com

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OpenCart: AI-assisted analysis on whats-best.ai OpenCart: AI-assisted analysis on whats-best.ai (dark)

Add ?theme=dark to the image address for dark backgrounds. The badge shows the category and the month of the latest evaluation, and EU-Made where that is the product’s provenance. It never shows a score.

OpenCart at a glance

Vendor
OpenCart
Headquarters
Not stated on the vendor’s pages as of 3 Nov 2026
Data hosting
Not stated on the vendor’s pages as of 3 Nov 2026
Free plan
Not stated on the vendor’s pages as of 3 Nov 2026
Panel verdict
The AI panel rates OpenCart 3/5, the mean of 6 judges. OpenCart is a free open-source e-commerce platform under GPLv3 (version 4.1.0.4). how scores are made
As of
Vendor pages captured 3 Nov 2026; evaluated by the panel 3 Nov 2026. all sources

OpenCart alternatives, European ones first →

Read this page as one judge. Each weighs the same scores by what they care about.

The Developer

Weighted verdict

Will maintain this for five years. Wants local development, version control for themes, a plugin architecture with a dependency model, and upgrades that do not orphan the customisations. Reads a closed template editor as a future migration.

Same scores as the panel view — this lens weights them the way this judge cares.

Scored by The Developer

Panel median The Developer This judge’s scores over the panel median. Each label opens its reasoning below.
Scores per criterion, in stars out of 5
Criterion Panel median The Developer
Catalogue & checkout 3 of 5 3 of 5
Tax & German legal correctness 2 of 5 2 of 5
Extensibility & developer surface 3.5 of 5 3.5 of 5
Order operations & back office 3 of 5 3 of 5
Data ownership & exit 3.5 of 5 4 of 5

Catalogue & checkout

How this is scored

Products, variants, pricing rules and the path to payment — the part that either converts or does not.

0 — Not a shop: no product catalogue and no checkout of its own.

3 — A product catalogue with categories and a checkout that takes payment through at least one provider.

5 — Products with variants, discounts or vouchers, guest checkout, and several payment methods including those German buyers expect (PayPal, invoice or direct debit) through named providers.

8 — Tiered and customer-group pricing, bundles or configurable products, rule-based promotions, per-channel or per-market pricing, abandoned-cart recovery, a checkout customisable without a rebuild, and buy-now-pay-later where offered.

10 — Merchandising and checkout are the product: rule-driven pricing and promotions, A/B-testable checkout, multi-currency and multi-language as standard, and conversion features (abandoned cart, one-page checkout) shipped rather than bolted on.

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The Developer

Variants with per-variant pricing and inventory, quantity-tier and customer-group discounts with date ranges and store assignment, and per-option price and weight handling are all documented in the product form. Payment is evidenced mainly as bank transfer and checkout on delivery in the default bundle, with PayPal named only as an example of what a payment extension can integrate; we found no public information on guest checkout, vouchers, abandoned-cart recovery or buy-now-pay-later. That places it solidly above the mid-level definition but short of rule-driven merchandising and shipped conversion features. 2 3 6

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Extensibility & developer surface

How this is scored

Themes, apps, APIs and headless — whether the shop can be shaped to the business, and at what cost in lock-in.

0 — A closed shop builder: no themes to edit, no apps or plugins and no API.

3 — Themes adjustable in an editor and a set of apps or plugins to add features.

5 — Custom themes with a template language or code access, an app or plugin ecosystem, and a documented API with webhooks for order events.

8 — A storefront API for headless builds, an extension framework with its own lifecycle, staging or development environments, version control for themes, and documented rate limits.

10 — A platform a team can own: headless-first APIs, open-source or source-available core, plugin architecture with a real dependency model, local development and CI supported, and upgrade paths that do not orphan customisations.

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The Developer

This is a platform a team can work in: GPLv3 source, a Docker local development environment with switchable PHP versions and optional Redis or PostgreSQL, Twig code access with custom theme directories, an MVC-L extension pattern, an events hook system (for example before cart add), OCMOD XML for modifications, an admin installer with packaging rules, and PHPStan plus code-style gates on contributions. We found no public information on a storefront API for headless builds, webhooks for order events, or a dependency model between extensions. And the upgrade story worries me: overrides live in the database, the theme editor has no revert button and no file locking (last save wins), admin templates cannot be overridden, and a store migration must remember to include the theme table in the backup — customisation debt waiting for a future migration. 1 6 7

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Order operations & back office

How this is scored

What happens after checkout: order management, stock, returns, shipping, and the link to ERP or accounting.

0 — No order handling in the product; orders leave as emails or exports to be processed elsewhere.

3 — An order list with statuses, stock counts per product, and shipping rates set up in the shop.

5 — Order management with status emails, stock tracking, named carrier integrations or label printing, and refunds or returns handled in the system.

8 — Partial shipments and partial refunds, multi-warehouse or multi-location stock, multi-channel or marketplace order intake, fulfilment routing, dropshipping, and maintained interfaces to named ERP and accounting systems (DATEV among them for German merchants).

10 — The shop is the front of an operation: real-time stock across channels and warehouses, returns and refunds fully worked including partials, ERP integration the vendor maintains, and operational reporting a merchant runs the business from.

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The Developer

The back office is real: eight order statuses with filtering, bulk status updates and invoice printing, editing of customer data, products, totals and shipping on existing orders, status-change emails, manual order creation with a payment method, subscription and reward-point tracking, and stock subtraction with out-of-stock status and backorder settings. Returns are unusually well worked — customer or admin initiated, configurable reasons, full and partial refunds, store credit, exchange and repair, plus return analytics. We found no public information on label printing or confirmed carrier integrations (UPS appears only as an example of extension types), partial shipments, multi-warehouse stock, or maintained ERP and accounting interfaces such as DATEV. 3 6 8 9

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Data ownership & exit

How this is scored

Whether the catalogue, customers and order history remain the merchant's: export completeness, hosting choice, and what leaving actually costs.

0 — The terms state that the merchant's data cannot be exported or is not returned on cancellation.

3 — CSV export of products and customers, or of orders, from the admin.

5 — Export of catalogue, customers and orders documented (CSV, API or dump), with data deletion or return on cancellation stated in the terms or help centre.

8 — Full-fidelity export including media and order documents, a documented migration path in and out, self-hosting or a choice of hosting partner, and no metering that prices a migration out of reach.

10 — Ownership is structural rather than promised: open-source or source-available platform the merchant can run anywhere, database-level access, documented migration in both directions, and contractual data return.

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The Developer

Ownership is structural rather than promised: GPLv3-licensed source the merchant runs on their own stack, a MariaDB database they hold, and migration handled at the database level, with the documented caveat that overrides are stored in the theme table and must be included in any migration backup. We found no public information on a documented migration path in and out or export tooling beyond the self-managed database, which keeps this short of the top definition. 1 7

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European sovereignty

How this is scored

Where customer and order data live, who the contracting entity is, and which subprocessors sit in the checkout path. Independently sourced by the sovereignty pipeline. Dimensions the evidence does not establish are unknown, not non-EU.

0 — Proven non-EU on every dimension the evidence covers: non-EU vendor and contracting entity and non-EU hosting, with no EU option stated.

3 — One European element proven — an EU hosting option, an EU contracting entity or EU representative, or a published DPA — with the rest of the chain unstated.

5 — EU hosting stated as standard or selectable and an EU contracting entity or EU representative, with a DPA offered; the subprocessor chain (CDN, analytics, payment routing, support tooling) is unstated or partly non-EU.

8 — EU hosting on named infrastructure, EU contracting entity, subprocessor list published with locations, any non-EU processing named with its legal basis.

10 — Sovereign end to end and evidenced: vendor, entity, hosting and every subprocessor European, certification published, and a self-hosted option that puts the shop entirely under the merchant's control.

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The Developer not rated — no public information

We found no public information on the contracting entity's jurisdiction, data residency, hosting options, or a data-processing agreement in the captured pages, so no sovereignty dimension is established either way — unknown, not non-European. The repository page we read confirms the licence but not who sits behind the checkout path or where order data is processed. 1

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Pricing transparency not rated — the vendor publishes no price

How this is scored

Whether a merchant can compute the real annual cost — licence, transaction fees, apps, hosting — from public pages alone. The category where the headline price is least often the invoice.

0 — No public prices at all; every tier is a sales conversation.

3 — A public "from" price or one priced tier.

5 — Prices for the main tiers public with the billing period stated and the main inclusions per tier listed.

8 — Every tier priced publicly including transaction or revenue-share rates, order or GMV limits, and the cost of the extensions most shops need; VAT treatment and minimum term stated.

10 — Complete price computability: annual cost derivable for a given order volume and GMV including licence, transaction fees, hosting and typical extensions — and for open-source platforms, an honest statement that the licence is free and where the money actually goes.

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The Developer

The licence is honestly stated as free and open source, so the licence line of an annual budget is fully public. We found no public information on where the money actually goes — marketplace extension prices, commercial support or typical hosting costs are not priced on the captured pages — and for a shop built mainly from extensions that is the number a buyer still cannot compute. 1 6

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European sovereignty — proven facts

0 of 6 dimensions proven

Built only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.

Hosting location Not determined — uncited Report an error
Hosting options Not determined ⚠ unverified — uncited Report an error
Open source Not determined ⚠ unverified — uncited Report an error
Data processing agreement Not determined — uncited Report an error
Transfer impact assessment Not determined — uncited Report an error

Questions about OpenCart

Is OpenCart European?

Not determined: the vendor’s pages as captured do not say where OpenCart is based.

Where does OpenCart store data?

Not stated on the vendor’s pages as of 3 Nov 2026.

Does OpenCart have a free plan?

Not stated on the vendor’s pages as of 3 Nov 2026.

What are the best alternatives to OpenCart?

As of 3 Nov 2026, the panel rates Shopify (3/5), Sylius (3/5) and OXID eSales (3/5) highest among the other 27 E-Commerce Platforms & Shop Systems products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is OXID eSales (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: how scores are made. The full list, with European products first: OpenCart alternatives.

Where this could be wrong

What we left out

A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.

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Sources (9)

The pages every claim on this page was read from — each one checked, dated, and kept verifiable.

  1. 1 Code repository (open-source licence) — found from the homepage github.com Checked 3 Nov 2026 Details →
  2. 2 Catalogue & checkout — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  3. 3 Catalogue & checkout — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  4. 4 Tax & German legal correctness — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  5. 5 Tax & German legal correctness — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  6. 6 Extensibility & developer surface — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  7. 7 Extensibility & developer surface — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  8. 8 Order operations & back office — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →
  9. 9 Order operations & back office — found from sitemap docs.opencart.com Checked 3 Nov 2026 Details →