You know, spam is a big threat for WordPress site. As a WordPress site owner, you may get huge spam comments or registration every day. The easiest way to control of these spams are using of WordPress Captcha Form Plugin. In this article, we will introduce you with some useful captcha form plugins for WordPress site.

Read: How to secure WordPress site without coding knowledge

Captcha by BestWebSoft


It’s a very popular captcha plugin. Over 300K user use this plugin. This captcha plugin ensures high secure captcha form for the Registration form, Login form, Password Reset form and Comment form. It supports letters, numbers, maths and images in the captcha form. Another special feature is auto hide captcha form for whitelist IP (known IP or specific IP). It also supports time limit, reload, limit attempt and multiple languages.

Download » Captcha by BestWebSoft

Better WordPress reCAPTCHA (with no CAPTCHA reCAPTCHA)


This captcha plugin is a combination of popular anti-spam library and Google reCAPTCHA. It can automatically integrate with Akismet and force a captcha when a comment looks like spam. It supports two Recaptcha version (no CAPTCHA reCAPTCHA and Oldschool reCAPTCHA). You can integrate this captcha form in the Comment form, User Registration from, Site Registration form and Login form. It also supports custom display position, custom error message and has six default themes. To use this plugin, you need to generate an API key from Google reCAPTCHA. You can use this plugin in multiple sites with a single key.

Download » Better WordPress reCAPTCHA (with no CAPTCHA reCAPTCHA)

Math Captcha


This captcha plugin is easy to use and 100% effective for spam. You can integrate captcha form into the Login form, Registration form, Password Reset form, Comment form, bbPress and Contact form 7. Another special feature of this plugin it uses simple math problem for captcha verification and automatically hide for logged in users. It can easily block spambots to direct access from wp-comments-post.php. It also supports multiple captchas on one page, custom title, custom input time and translation.

Download » Math Captcha

WPBruiser {no- Captcha anti-Spam}


It is an anti-spam and security plugin based on powerful algorithms that can identify spam bots without any annoying and tough to read captcha images. It can completely prevent spam bot signup, spam comment and brute force attacks. By using this plugin, your spam folder will be completely free from spam messages and comments. It is completely self-contained and does not need to connect with any third party service. You can integrate this plugin into Login form, Registration form, Comment form and Forget Password form. Another special feature of this plugin is it can detect client IP address and automatically block spam, proxy IP address and give an in detailed statistics and reports.

Download » WPBruiser {no- Captcha anti-Spam}

Captcha Code


This is an another great captcha plugin. It can prevent spam from automated bots. It supports Comment form, Registration form, Password Reset form and Login form. It produces image generated captcha. It supports custom captcha displaying option, capital letters, small letters, both capital and small letters, numbers or combination among them. A special feature of this plugin is translation option. It can automatically detect and translate to different languages.

Download » Captcha Code

Conditional CAPTCHA

Conditiona- CAPTCHA

It is a smart captcha form. It has default intelligence to detect a spam. It only asks commenters to verify a simple captcha if they don’t have a previously approved comment or Akismet indicate as spam. This captcha plugin has two modes, one is basic mode (works on who is not logged in and does not have a previously approved comment) and another one is Akismet-enhanced mode (only works when Akismet indicate as spam).

Download » Conditional CAPTCHA

You can use anyone of these captcha form plugins. If you face any problem then you can inform us through the comment box below.