Completely free VAPTCHA human verification for WordPress login, registration, password reset, and comments.
Alternatives to GridXFlex Captcha Security
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.
Redeyed Sentinelv1.0.7
Free CAPTCHA and IP-reputation for WordPress login, registration, lost-password and comments, with a block log. Inert until your keys are set.
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.
A lightweight math CAPTCHA and spam protection plugin for WordPress login, WooCommerce, and Contact Form 7 forms.
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.
Captcha Codev3.33
GDPR compatible captcha anti-spam protection for login form, comments form, registration form & lost password form. Eliminate spam with captcha.
Protect your WordPress forms from spam and bots with a simple CAPTCHA — without complicated setup, external accounts, or API keys.
Privacy-friendly Cloudflare Turnstile CAPTCHA for WordPress login, registration, comments & WPForms. Stops bots and spam.
The most complete free WordPress anti-spam plugin. Protects Contact Form 7, comments, login, registration, REST API, and XML-RPC — all in one shield.