Wufoo

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WP Fluent Forms

Typeform is a web-based form and survey tool designed for the 21st century. With Typeform you can easily create conditional logic lets you ask the right follow-up questions and skip the rest. Allowing you to make surveys that feel less like interrogations, and more like conversations, and forms that actually let people fill out information related to their usecase Typeform integrates with third-party services like Airtable, Zapier, MailChimp, Google Analytics, Google Sheets and many more. Allowing you to create a streamlined workflow that can ping your Slack when somone fills out a form, sync responses with Google Sheets or automatically email the person who just filled out a survey.

If you have a static website with forms on it, form.taxi is the backend service for your HTML form to handle submissions in a simple and efficient way. Just connect your web form to the form.taxi endpoint, and it will take care of storage, spam filtering, and email notification. Use it with basic features for free.

Constant Contact Forms allows you to create forms that are clear, simple, and mobile-optimized for every device. Choose forms that automatically select the theme and style of your WordPress site. Customize data fields, so you can tailor the type of information you collect.

A popular WordPress plugin used for building contact and registration forms for WordPress-powered websites. 

MightyForms is an online form builder that allow you to create forms to capture user data, surveys and contact information. You can save time by choosing a ready-to-use template from MightyForms' catalog. They offer order form templates, contact form templates, application templates, survey templates and more, which customized to accurately represent your brand or cause.

Ninja Forms is a freemium WordPress plugin that can be used to create any type of forms for WordPress-powered websites. The plugin integrates with many popular 3rd party services and can be used to collect registrations, email news letter signups, create surveys and much more. Ninja Forms provides a sleek UI that suits users of all technical level and simplifies the process of managing forms with WordPress dramatically.