Yes, NF Captcha is free to use. It is available as a free plugin on WordPress.org.

How many websites use NF Captcha?

NF Captcha has 10 active installations as tracked by WordPress.org.

What are the best NF Captcha alternatives?

Popular alternatives to NF Captcha include Akismet Anti-spam: Spam Protection, Sucuri Security – Auditing, Malware…, WP Mail Logging. You can compare them side-by-side on our comparison pages.

Does NF Captcha work with the latest WordPress?

NF Captcha has been tested up to WordPress 4.4.34. It requires WordPress 3.9+ and PHP false+.

NF Captcha — Reviews, Rating & Alternatives (2026)

Name: NF Captcha
Author: macnetic-labs

As of April 2026, NF Captcha is a WordPress spam plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.4K+ times in total. Requires WordPress 3.9+ and PHP false+. Available on WordPress.org since 2016. Last updated 10 years ago — may have compatibility concerns. Top alternative: Akismet Anti-spam: Spam Protection.

0/5Rating

10active installs

1.4K+total downloads

10 yearssince 2016

Overview

NF Captcha adds really simple captcha elements to the Elements’ block. It also includes labels and custom classes for the element to allow for more styling. It ist a good alternative, if you don’t want use reCAPTCHA or Anti-Spam-Question.

This plugin requires the Ninja Forms and Really Simple CAPTCHA plugin.

Read full description on WordPress.org