Formidable Form Builder Alternatives

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.

Contact Form 7 is a WordPress plugin that can be used to create and manage multiple contact forms. The plugin allow you to customize your forms and connect them to email to send confirmation emails designed with flexible and simple markup. Contact Form 7 also provides CAPTCHA and spam filtering with Akismet.

With AidaForm you can easily create, manage and host forms from a single unified platform. AidaForm provides all necessary features related to the process of creating and analyzing forms and submissions. The form builder that comes with AidaForm allows you to quickly and effortlessly design forms, conditionals and form related embeds.

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.

Formik is a free and open-source library for building forms with React. The library improves on the otherwise verbose process of creating forms in React by minimizing the need for repetition and eliminating the cumbersome process of keeping track of values, errors, visited fields and orchestrating validation and error handling.

Build forms your way and let StaticForms handle the back-end.

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

WP Fluent Forms is a WordPress plugin that allows you to create fluent forms for your WordPress-powered website. The plugin features a drag-and-drop form builder that can be used to create advanced forms in minutes. WP Fluent Forms is used by thousands of sites to create contact forms, surveys or capturing of other nessesary data.