Piotnet Forms Pro is a drag and drop wordpress form builder. It helps you create shapes in minutes with many features to help you create your most amazing shape.
Easy Forms is a full-featured, easy-to-use, online form builder tool that speeds up the form building process - so you can finish your online forms faster and enjoy the rest of your work without code.
NEX-Forms is the best WordPress Form Builder plugin for creating simple to complex forms. With tons off add-ons and features NEX-Forms is a complete online form and form building solution.
Zigaform - PHP form builder is a flexible and Ultimate PHP Form Builder Software which allows you to build responsive forms on few minutes using a simple yet powerful drag-and-drop form creator.
Includes a form builder for adding/editing different field types, including one or more automatically calculated fields based on data entered in other fields.
PHP Form Builder is a complete library based on a PHP class, which allows you to program any type of form and layout them using simple functions and/or using its drag & drop form generator.