There are many ways to sell products on WordPress but if you want to build a complete online store on your WordPress website than you will probably use one of the already build eCommerce platform for WordPress.
Because eCommerce is very important aspect for any business that want to earn money we have added a new section for eCommerce platform for the WordPress platform.
Many of the eCommerce platform are free to use but you should know that although the basic platform is very you will probably need to extend it using paid extensions. In most cases the prices for the extensions are very reasonable and even if you buy more then few extensions you still have a lot profit margin from your online store.
You can now browse the eCommerce plugins section find the right eCommerce solution for your need and compare it with all other eCommerce plugins.