Yes, Ninja Forms is free to use. It is available as a free plugin on WordPress.org.

How many websites use Ninja Forms?

Ninja Forms has 100 active installations as tracked by WordPress.org.

What are the best Ninja Forms alternatives?

Popular alternatives to Ninja Forms include MC4WP: Mailchimp for WordPress, MW WP Form, MailerLite – Signup forms (official). You can compare them side-by-side on our comparison pages.

Does Ninja Forms work with the latest WordPress?

Ninja Forms has been tested up to WordPress 4.3.34. It requires WordPress 3.7+ and PHP false+.

Ninja Forms – MailPoet — Reviews, Rating & Alternatives (2026)

Name: Ninja Forms – MailPoet
Author: Jean

As of April 2026, Ninja Forms is a WordPress form plugin with 100 active installations and a 0/5 rating0. It has been downloaded 5.3K+ times in total. Requires WordPress 3.7+ and PHP false+. Available on WordPress.org since 2015. Last updated 10 years ago — may have compatibility concerns. Top alternative: MC4WP: Mailchimp for WordPress.

0/5Rating

100active installs

5.3K+total downloads

11 yearssince 2015

Overview

This extension integrates Ninja Forms with MailPoet by providing an option to add users who submit a form to an existing newsletter. Great for signing up people to auto responders.