WooCommerce is an eCommerce WordPress plugin. What that means is that you can run your online store on your own server, instead of paying a monthly fee for another platform to run your store on.

There are many themes built specifically for WooCommerce, which means you'll be able to build a beautiful site. There are also a variety of other WordPress plugins that work well with WooCommerce to extend it's functionality.

Speaking of functionality, at it's core, WooCommerce offers a number of key features including the capacity to manage as many products as you want, manage payments using a variety of payment gateways, provide shipping calculations for your customers, and a lot more.