1 The Ultimate Spam Protection Plugin Using Captcha for WordPress Forms.
Alternatives to NF 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.
I don't like Spam!v1.3.1
Use the Comment Blocklist feature to protect your contact form.
SecureGate Captcha Litev1.1.1
Complete site security with Cloudflare Turnstile, Math & Character CAPTCHA. High-performance protection for Login, Registration, and Comment forms.
Add OTP verification (Email, SMS, WhatsApp, Voice Call) to Ninja Forms to prevent spam and fake submissions.
The easiest way to make your Ninja Forms GDPR-compliant. Fully documented, extendable and developer-friendly.
Lightweight, self-hosted captcha field for Fluent Forms — image, math and question/answer challenges. No external services, no tracking.
Protect your WordPress forms from spam and bots with a simple CAPTCHA — without complicated setup, external accounts, or API keys.
LanceDesk Form Guardv0.1.16
Block contact form and comment spam with local heuristics and optional AI before emails send or comments publish.
Honeypot Plus for Contact Form 7 - Adds honeypot plus anti-spam functionality to Contact Form 7 forms.
Protect WordPress website forms from spam entries with Google reCAPTCHA.