Ridhwan Ahsan

RMGCaptcha Math Guard adds a GDPR-friendly, math-based CAPTCHA to protect WordPress login, WooCommerce, and Contact Form 7 forms from spam, fake registrations, and brute-force attacks. No external services, no tracking, and fully WordPress.org compliant.
Features:
<ul>
<li>WordPress login protection (captcha on wp-login.php)</li>
<li>Contact Form 7 integration via [pmcMathcaptcha] / [pmcMathcaptcha*]</li>
<li>WooCommerce login and registration protection</li>
<li>Lightweight spam protection without Google reCAPTCHA or third-party tracking</li>
<li>Configurable difficulty and operations (Addition/Subtraction/Multiplication/Random)</li>
<li>Hide captcha for logged-in users</li>
<li>Custom error message support</li>
<li>Optional rate limiting and honeypot</li>
<li>Failed login log + logged user list (admin pages)</li>
<li>Translation-ready</li>
</ul>

RMGCaptcha Math Guard – Math CAPTCHA for Login and WooCommerce

A lightweight math CAPTCHA and spam protection plugin for WordPress login, WooCommerce, and Contact Form 7 forms.

Sandeep Kumar

Simple, Lightweightht and User Friendly plugin to secure your wordpress admin panel by adding captcha on the login page.
Features: 
* Mathematical Captcha 
* Google reCAPTCHA V2 
* Google reCAPTCHA V3

SKP WP Admin Login Captcha


The plugin is simple and easy to use. The captcha works fine.


Simple Free and effective

Add Google or Mathematical captcha on wordpress login page

RMGCaptcha Math Guard – Math CAPTCHA for Login and WooCommerce vs SKP WP Admin Login Captcha