OpenCart

OpenCart is a free, open-source PHP platform for building online stores. It is a complete e-commerce solution — from the product catalog through the cart and checkout to the admin panel — and stands out for its simplicity and modest technical requirements compared with rivals.

How OpenCart works

OpenCart runs on PHP and a MySQL database using an MVC architecture. After installation the administrator gets a panel for managing products, categories, orders and customers, while the shopper sees a ready storefront with a cart and checkout flow. Built-in features include running multiple stores from a single installation, multiple languages and currencies, discount coupons, and integrations with popular payment gateways and shipping carriers.

Functionality is extended through themes and extensions available in the official marketplace — from advanced catalog filters and warehouse-system integrations to SEO modules. Thanks to its open code a developer can modify any part of the store, though upgrades can be a demanding stage, especially with many overrides in place.

Practical application

OpenCart is most often chosen by owners of small and mid-sized stores who value quick setup and the absence of license fees. Compared with WooCommerce it runs standalone, with no need to install WordPress, and it is far lighter and less hardware-hungry than Magento.

In hosting terms OpenCart has the standard requirements of a PHP application: a suitable PHP version with the right extensions, a MySQL/MariaDB database and an SSL certificate for secure payments. Because it is a store, server performance and stability are critical — fast hosting with caching and reliable uptime translates directly into a smoother buying experience and fewer abandoned carts.