A lightweight math CAPTCHA and spam protection plugin for WordPress login, WooCommerce, and Contact Form 7 forms.
Alternatives to SKP WP Admin Login Captcha
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Dlit Easy Math Captchav1.5.2
A simple math captcha plugin for comments, login, registration, WooCommerce reviews, and Contact Form 7.
Apply a simple mathematical captcha to specific buttons by providing their CSS class or ID to prevent spamming.
Mathlock Guardv2.0
Protects your site with a lightweight math CAPTCHA, requiring visitors to solve a simple question before accessing your content.
Lightweight, self-hosted captcha field for Fluent Forms — image, math and question/answer challenges. No external services, no tracking.
Captcha Codev3.33
GDPR compatible captcha anti-spam protection for login form, comments form, registration form & lost password form. Eliminate spam with captcha.
"DS CF7 Math Captcha" is a math captcha with refresh captcha functionality to prevent unwanted spam for your contact form 7 plugin.
A lightweight, server-side math CAPTCHA for Gravity Forms. No JavaScript, no external services, no tracking.
Protect your WordPress login form from bots and brute force attacks with Google reCAPTCHA, a slide-to-unlock captcha, or an icon captcha.
Adds a beautiful math CAPTCHA to the WordPress login page. No API keys, no paid services — 100% free.