ChronoForms PRO v7.0.6 is one of the best responsive form builders for Joomla 3. You can create custom forms in seconds. You can also create forms using custom code. Joomla component has a large list of functions and a very user-friendly management interface. Some of the extension's features: easy email customization, drag-and-drop form creation or using native code with Bootstrap support, writing all data to a database with the ability to export to CSV files, a wide range of anti-spam tools, managing user groups, connecting payment gateways, multi-page forms and many other features.
Info: https://www.chronoengine.com/chronoforms
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