Often a designer is required to design a WordPress form and a developer is required to add the required functionality.
Well, now you don’t need any designer or a developer for these things. Use the Gravity Forms WordPress plugin and you can create the WordPress forms easily.
You can select any type of validation for each of the form fields.
Gravity forms provide a quick and easy way to integrate with a variety of third-party services such as PayPal and provide even
deeper integration with WordPress through a collection of optional Add-Ons.