What Features and Add-ons Does osCommerce 4 Offer for Running an Online Store?

osCommerce 4 is a free, open-source shopping cart platform that you extend through an App Shop covering design, marketing, SEO, payment, shipping, and business-model packs (Retail, Wholesale/B2B, Marketplaces). It suits store owners who want a self-hosted cart with modular add-ons rather than a fully managed SaaS; you download the cart or use osCommerce hosting, then add apps as the store grows. The platform runs on PHP 8.3 (with support back to PHP 7.4) and MariaDB 10.x.

Core platform capabilities

The site positions osCommerce 4 as a "one stop free open source eCommerce platform" with a downloadable shopping cart and a hosted trial option ("Try with osCommerce host"). The stated development policy is compatibility with the latest server software for speed and security, which is why the current target is PHP 8.3 / MariaDB 10.x.

What the page confirms as part of the offering:

• Shopping cart core — the base storefront and checkout, free to download.
• App Shop — the extension marketplace where you add functionality.
• Dev kits — listed under premium app packages, aimed at custom development.
• Enterprise version — a separate edition listed in navigation.
• Services — ecommerce development, migration to osCommerce, osCommerce hosting, enterprise services, and white label.

App Shop categories

The navigation lists these app categories, which map directly to the store functions you can extend:

The Retail, Wholesale/B2B, and Marketplaces entries are packaged options rather than single apps, so they are the quickest way to align the cart with your business model. The App Shop also has "Submit app" and "Request app" entries, meaning you can ask for an integration that does not yet exist.

Payment and checkout modules

Two gateway modules are explicitly announced on the page:

• PayPal 2.0 — "New PayPal 2.0 module for osCommerce has arrived."
• Opayo — "New Opayo gateway module for osCommerce has arrived."

Payment and Checkout also appear as standalone links in the site's pricing/app navigation, so gateway choice is handled as an add-on rather than baked into the core. If your required gateway is not listed, the "Request app" route is the documented path.

Scale and maturity signals

The page gives version-specific counts that help gauge the ecosystem:

The page itself notes that V4 will support a similar number of add-ons as earlier versions but "there will be fewer of them as the current system is much more advanced out-of-the-box." In practice, that means more functionality ships in the core and you rely less on third-party patches — but the V4 add-on catalog is still smaller than the legacy one, so check that your must-have integration exists for V4 before committing.

How to decide

• Choose osCommerce 4 if you want a free open-source cart you host yourself, you are comfortable adding modules from an App Shop, and your requirements map to the listed categories (design, marketing, SEO, payment, shipping) or the Retail/Wholesale/Marketplaces packs.
• Check first if you depend on a specific payment gateway or marketplace integration — confirm it exists in the V4 App Shop, or plan to use "Request app" or custom development via the listed services.
• Consider the hosted trial ("Try with osCommerce host") before migrating an existing store; migration to osCommerce is offered as a service if you are coming from another platform.

Pricing beyond "free" for the cart itself is not specified on this page; premium app packages, hosting, and enterprise services are separate offerings, so confirm costs for those directly before budgeting.