Convert Forms Pro 4.0.0 is a popular and easy to configure and use form designer for cms Joomla. With this Joomla 3 extensions, you can easily implement any subscription form, any contact form.
The main features of the component forms. The presence of a convenient constructor that allows you to create any form without coding knowledge, support for the main set of form fields, the presence of adaptive form templates already installed, integration of the popular email providers AWeber and MailChimp, setting up redirection after sending messages, using AJAX technology, advanced form setting (you can adjust background color, borders, margins, fonts, indentation), embedding forms using a module or short code, convenient export and import of forms, and much more.
Info: https://www.tassos.gr/joomla-extensions/convert-forms