Contact form with captcha plugin allows you to use a Google reCAPTCHA contact form on your blog. It requires PHP 5.0 or later.
FV Antispam is a powerful and simple antispam plugin. It moves any spambot comments directly to trash and allows Akismet to just deal with human spam.
Super Simple Anti Spam for WordPress is anti spam plugin (for comments and trackbacks), while not having to moderate and / or edit a single setting.
Encode mailto links, email addresses or any text (like phone numbers) and hide them from spambots. All mailto links in your posts, pages, comments and
A lightweight plugin to protect email addresses from email-harvesting robots by encoding them into decimal and hexadecimal entities.
Blue Captcha is a powerful and highly customized WordPress plugin that effectively protects your WP blogs from spammers and unwanted persons.
minotaur - Rid the internet of text CAPTCHAs!
Simple Ajax Chat displays a fully customizable Ajax-powered chat box anywhere on your site.
Stop spam with a fun, fast mini-game CAPTCHA! FunCaptcha is free, and works on every desktop and mobile device. For BuddyPress, Gravity Forms, CF7, bb
Protect your website from spam using our human friendly, fun and designed Captcha plugin
This antispam plugin provides very simple(one-click) and powerful captcha for your blog.
This plugin protects your registered user base by preventing registration with a disposable email addresse (like the ones provided by mailinator).
This Plugin provides very simple and powerful captcha for your blog with wide variety of captcha methods and models.
This plugin adds a new form of captcha to your Buddy Press registration and comment forms.
Use this plugin to prevent bots from spamming your website
Protect your site with a video CAPTCHA solution that provides better security and is easier to read for your visitors.
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