WordPress Antispam Plugins

Prevents automated SPAM by requiring visitors to answer a question of your choosing (plaintext or regex).

Light and invisible method to block spam when spam is posted.

Protect your contact form from spam with Google reCAPTCHA before submission.

This plugin allows you to implement Google reCAPTCHA (CAPTCHA) into your web forms.

A simple to use plugin that helps you keep your WordPress site clean of spam comments.

防止垃圾评论插件,点击正确的图形提交评论,仿"Clickcha"(Click on the Right picture to submit comments,to prevent spam comments,as clickcha)

Slide Captcha it is a WordPress plugin that add a slide captcha field to the WordPress comment form.

Tornevall Networks DNSBL implementation with FraudBL support for WordPress

BotScout is a third-party antispam service. It maintains a database of known spammer bots which can be checked to determine if a given IP or email has …

Obfuscation of email via the [antispambot]...[/antispambot] shortcode syntax using built-in Wordpress Codex functionality.

Lemin Captcha is uniquely playful, robust, and effective. Through gamification, we are curing the pains of traditional CAPTCHA.

WPshore Contact Form 7 Spam Prevention helps you manage your Inbox to keep it free of unwanted e-mail messages.

Firewall protection for comments. Blocks spam before it reaches your database with automatic link filtering and zero manual moderation.

Simple spam protection using an inverted checkbox. Compatible with Contact Form 7 and custom HTML forms.

reCAPTCHA for login, signup, comment, WooCommerce, Mailchimp and other forms.

This plugin uses the OpenAI gpt-4o and gpt-4-turbo models to analyze and filter comments made on your texts.

A simple and robust anti-spam plugin that adds a submission delay, JavaScript token, and a honeypot field to your site's forms.

Maintaining a culture of online communication in the hands of the users themselves.

Ctanfor Anti-spam is a small and lightweight anti-spam plugin. It is free for personal and commercial use. The vast majority of filtering operations a …

Protect your WordPress site from spam comments and form submissions using AI-powered detection with Gemini or OpenAI.

Increase security and protect against bots, spammers and hackers with VisualWP Anti-Spam and Fraud Prevention

Invisible 15-layer anti-spam for Contact Form 7 & WPForms. Score-based 3-Tier Triage silently blocks bots — no CAPTCHA, no user friction.

AI-powered comment spam detection using GPT-4. Blocks spam comments with inline user warnings—no CAPTCHA needed.

Protect email addresses and phone numbers from spam bots with a simple shortcode.