WP Pineapple adds a fruity looking anti-spam, anti-bot "are you human" test to your comment form.
"CF7 Advance Security" is a advance captcha module. It is only created for Contact Form 7 plugin.
Adds a button in the rich text editor which generates the shortcode for Contact Form 7 forms.
Add a honeypot and Google reCAPTCHA V2 (noCAPTCHA CAPTCHA) to the log in form, registration form, and comment form
BotSmasher stops spam by checking comments and registrations against the BotSmasher API.
A customisable human detection plugin, that isn't annoying. Seriously.
The most lightweight Google reCAPTCHA v2 comment anti-spam plugin!
Geo-Captcha shows a captcha image only to countries you don't trust. Geo-Blacklists allows you to disable comments for some countries.
Keep Your Site Happy, add Khush Captcha Anti-SpamBot Technology to your WordPress Registration and Comment Forms.
Styled user management for login, register, user profile... - optional: user chosen passwords, e-mail validation, admin approval, reCaptcha and more
Make users Read More related posts and protect WordPress from spam. Displays extracts from blog posts or useful messages.
Easy to modify Survey Form
AS login you can fully customize wordpress login page.
Exiba uma imagem com código de segurança na página de registro do teu blog. Display a captcha on signup form
Build cool, easy and flexible forms with Forms.
Hercules Recaptcha adds a Recaptcha to the comment form for non-logged in users. It uses the latest Recaptcha API.
Provides Captcha display on login, registration, lost password and commenting pages in WordPress (Also works for WooCommerce)
antispam question for signup and comment forms of wordpress, set by admin, supports Multisite mode
Сaptcha generated numbers and latin characters. Designed for use in custom forms and displays a simple shortcode, and connect to log form.
A script which protects the comment form from spam. Does four ways of protection.
Add reCAPTCHA to your WordPress login form
A total simple contact form with captcha, support multilinguality.
CAPTCHA with the sophistication of video advertising that protects your website from spam. Make money as we take human verification to the next level.
This plugin adds a comprehensive suite of security measures to WordPress.
Adds a Honeypot and a clean image captcha to Gravity Forms. Images are made using Font Awesome's font icon.
Provides a replacement for login and register and lost password and provides feature for password expiration and optional invitation codes.
GainURL allows to earn money without much advertising, banners and affiliate posts on the pages of your website.
Share your website with others. Places a "Send Link" button on your Webpage allowing your users to tell others about your site - Selectable
Customize WordPress login page easily according to your theme or any other custom style with Custom Login Page Styler.
Let admin create a page to do automatic exchange links with other webmaster