Galaxy Funder is a Keep What You Raise Crowdfunding System built on top of WooCommerce and is rich in features. It is a WooCommerce Extension Plugin. Using Galaxy Funder you can run your own Crowdfunding site or add the Campaigns for Crowdfunding on top of your existing WooCommerce Shop. You can use any Payment Gateway supported by WooCommerce.
Please note that Galaxy Funder works on the Shop Page as follows i.e. on the Shop Page you won’t get the contribution field for the user to enter the contribution amount but will be linked to the Single Product Page so the user can come to the Single Product Page to make the contribution.