WooCommerce is one of the most popular open-source e-commerce platform built as a WordPress plugin, powering millions of online stores ranging from small Etsy alternatives to large multi-product brands worldwide. Positioned as the leading open-source WordPress e-commerce plugin, WooCommerce combines unlimited products and customizable storefront themes, a flexible payments stack with Stripe, PayPal, Apple Pay, and Google Pay, shipping zone configuration, tax automation, deep analytics, and a marketplace of 800-plus official extensions. WooCommerce is a strong fit for small business owners launching their first online store, agencies building bespoke e-commerce sites for clients, and merchants who want full ownership of their store data instead of a SaaS lock-in like Shopify.