1. WooCommerce Default Product Filter Widgets (FREE)

WooCommerce gives you product filter widgets by default. To use WooCommerce inbuilt filters, go to Appearance > Widgets and drag & drop the following filters in your sidebar: “Filter Products by Attribute“, “Filter Products by Rating” and “Filter Products by Price“.

Now the front end looks like this:

I was able to add filters by attribute, rating and a price “slider”. Super easy. However, there two major problems: these WooCommerce filters are not powered by Ajax (hence the page “reloads” after using one of the filters) and they’re way too limited. There are only 3 default widgets, you can only have attribute dropdown or list, only have a price slider and not a list of price ranges á la Amazon… basically you can’t do much with this setup.

Also, you can manage product filters using free or paid plugins.