OpenCart

OpenCart is a free, open-source e-commerce platform that provides a full-featured online store out of the box with zero licensing costs. Built on PHP and MySQL, OpenCart offers an intuitive admin dashboard, multi-store management from a single backend, and support for multiple languages and currencies. The platform ships with essential e-commerce features including product management with options and attributes, customer accounts, order processing, coupon and discount systems, and built-in SEO tools. OpenCart's extension marketplace hosts over 13,000 modules and themes, covering payment gateways, shipping methods, analytics integrations, and design customizations. The platform supports popular payment providers including PayPal, Stripe, Square, and dozens of regional processors. OpenCart's multi-store capability allows merchants to run multiple storefronts with different domains, themes, and product catalogs from one admin panel, making it efficient for businesses operating in multiple markets or niches. The platform has a large global community providing support through forums, documentation, and third-party development services. OpenCart 4.0 introduced a modernized codebase with improved security, better performance, and an updated admin interface.