Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Alternatives to Ironclad CAPTCHA WP plugin
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Self-hosted image CAPTCHA and silent honeypot for Login, Registration, Lost Password, and Comments forms. No API keys, no external services.
Free CAPTCHA and IP-reputation for WordPress login, registration, lost-password and comments, with a block log. Inert until your keys are set.
Protect WordPress/WooCommerce/Contact Form 7 forms from spam, brute-force attacks, fake comments, accounts, or registrations with Google reCAPTCHA.
Protects public WordPress forms, login, registration, comments, and WooCommerce product reviews with a local CAPTCHA and rate limits.
Self-hosted image CAPTCHA for WordPress. No third-party services or external requests. Privacy-first CAPTCHA. GDPR compliant.
Privacy-friendly Cloudflare Turnstile CAPTCHA for WordPress login, registration, comments & WPForms. Stops bots and spam.
Completely free VAPTCHA human verification for WordPress login, registration, password reset, and comments.
Privacy-first, Proof of Work captcha for WordPress. No image puzzles, no tracking. 22+ integrations included.
Official Shielda CAPTCHA plugin to protect WordPress, WooCommerce, and WPForms against automated bots, brute-force attacks, and spam.