Stops spam in comments, registration, WooCommerce and contact forms. No CAPTCHA, no external services. Formerly WP Spam Protecter. Free.
Alternatives to Humainbox – AI Spam Filter for Contact Forms
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.
MDL Spam Filterv1.0.1
Block contact form spam server-side with keywords, honeypot, rate limiting and optional AI — works with Contact Form 7, WPForms, Gravity Forms.
Free captcha for WordPress that replaces Google reCAPTCHA, hCaptcha and Cloudflare Turnstile. No puzzles, and nothing leaves your server.
Customers Todayv1.0.0
Stop losing customers to noisy and spammy contact forms. Get a clear list of your real customers who are ready to buy today and respond from anywhere.
QWeb Spam Shieldv1.1.0
Stop spam on every form, comment, review, signup and WooCommerce checkout, with no CAPTCHA and no external calls. Card-testing defense built in.
Ascuev0.2.0
Sorts contact form messages into real leads, sales pitches and spam, so only the messages that matter reach your inbox. No CAPTCHA.
FormRank Lead Scoringv1.1.5
See which form submissions are worth calling back. Automatically sorts your WordPress form leads by quality so you stop wasting time on junk and focus …
Stop comment spam, fake registrations and form bots with invisible behavioral verification — no puzzles, no checkboxes, zero PII.
DigiNex Spam Guardv1.1.0
Invisible, CAPTCHA-free spam protection for Elementor, Contact Form 7, WPForms, Gravity Forms, Fluent Forms, Forminator, comments and sign-ups.
hostily Captchav0.2.4
Spam protection for comments, login, registration, WooCommerce and form plugins. Hosted in Germany, no cookies, no image puzzles.