WooCommerce

WooCommerce is an open-source WordPress e-commerce plugin that lets you build anything from a solo store to a full marketplace. Plugins like WCFM (Fancy WooCommerce Multivendor) and WC Vendors add vendor dashboards, commission rules, seller payouts, and inventory management. You host it yourself on your WordPress site and control the tech stack completely.

Good for WordPress users who already have a site and want to avoid monthly subscription fees of hosted platforms. The open-source approach gives you full customization but requires more technical setup and ongoing maintenance than SaaS alternatives. Pick WooCommerce if you're comfortable with WordPress and prefer owning your infrastructure to outsourced solutions.