Advanced Form for Magento 2 allows administrator to create numerous shapes of web form with 11 useful fields to collect customer’s information to meet your marketing demand. You can easily create your own forms tailored for your business purposes.
Get details: https://www.magesolution.com/advanced-form-for-magento-2.html
Advanced Form - Features
Unlimited number of forms created
Automatically create email template, meanwhile, the form is being created
Generate display page while creating form
11 super exciting input types for each field (text, text area, file, image, drop-down, radio, checkbox, multiple select, date, store view, product) to choose
Support data storage and sending mail after form is submitted.
Ability to configure Send mail panel with email template, recipients and fields to reply
Allow to add CAPTCHA code to form
Allow to configure Display page similar to creating a CMS page
Allow to create your own template to display the form using available shortcodes

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Blue Form Builder by Magezon is also a powerful form builder for Magento 2 with user-friendly backend and various features. Creating forms of any kind and complexity is now a piece of cake: https://www.magezon.com/magento-2-form-builder.html

Video:
https://www.youtube.com/watch?v=NGzcn7Gmr60

- Visual drag & drop system.
- Add file upload field.
- Send email notifications to admin and customers.
- Prevent spam and abuse with 2 Captcha functionalities.
- Easily embed forms wherever with 4 display types.
- Provide 10+ templates.
- Support forms with multiple pages.
- Easy to style forms.
- Support inline validation.
- Integrate with optional plugins: PDF, Conditional logic, Report, Form Products, etc.
- Fully responsive
- 30+ elements
- Easy submission management
- Form pre-filling
- Custom variables

Magento 2 Form Builder on Magento Marketplace: https://marketplace.magento.com/magezon-module-blueformbuilder-core.html