A lightweight math CAPTCHA and spam protection plugin for WordPress login, WooCommerce, and Contact Form 7 forms.
Alternatives to AI 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.
2IZI SmartCaptcha for Yandexv1.0.12
Yandex SmartCaptcha protection for WordPress, WooCommerce and Contact Form 7.
SecureGate Captcha Litev1.1.1
Complete site security with Cloudflare Turnstile, Math & Character CAPTCHA. High-performance protection for Login, Registration, and Comment forms.
Reycob Form Firewallv1.3.9
Protects public WordPress forms, login, registration, comments, and WooCommerce product reviews with a local CAPTCHA and rate limits.
1 The Ultimate Spam Protection Plugin Using Captcha for WordPress Forms.
CaptchaLav1.0.0
Smart privacy-first CAPTCHA for WordPress, WooCommerce, and 14+ form plugins. Mandatory server-token anti-replay.
A lightweight plugin that protects core WordPress forms and selected third‑party plugins from spam and bot attacks using Cloudflare Turnstile CAPTCHA.
Invisible spam protection for every form, login and checkout. No puzzles, no checkboxes, no lost visitors — a CAPTCHA your users never see.
Kaya Login Captchav1.1.0
Protects the WordPress login, registration and lost-password forms with a simple captcha. No third-party APIs, services or dependencies required.
OhmTang CFTv1.0.1
Integrate Cloudflare Turnstile CAPTCHA for WordPress & WooCommerce forms with custom error messages, each form controlled individually