5 WordPress Plugins to Add Captcha to WordPress Blog

WordPress Captcha Plugins

Are you looking for WordPress Captcha Plugins?

Using WordPress for your blog gives you better control on your website and makes it easy to manage everything. But it also makes your website vulnerable to spammers. Within a few days of making your website live, you will start seeing spam comments, spam registration and spam guest posts in your blog. So, I personally advise not to allow any person register and submit posts. Similar thing for comment. You will see hundreds of spam comments daily in your blog. Another big problem is the login brute force. Most of the hackers use this method to crack the password of a WordPress blog. So, you should also keep your login pages secure. In my previous post, I wrote how to keep your blog secure from Brute forcing attacks and also posted a few security plugins for WordPress.

I this post, I am going to write about a different approach to reducing spam on your blog. You can try adding captcha in the different forms on your blog. Although, it is not very helpful in registration spam. But it will surely help you in reducing the comment spam and limit login brute-forcing.


CAPTCHA is the short form of “Completely Automated Public Turing Test to Tell Computers and Humans Apart.” It is used to differentiate between human and computer. Captcha in a form helps in preventing bots from submitting the form.


WordPress has several public forms including login, signup, password reset, and comments. Most of the spammers push spam comments automatically on WordPress based websites for backlinking. Captcha can help in preventing such attempts.

In this post, I am posting a few nice WordPress Captcha plugins which are available for free. You can use any of these WordPress plugins to add captcha to WordPress Login, Registration or Comment Forms.

WordPress Captcha Plugins

1. Google Captcha (reCAPTCHA)

reCaptcha: WordPress Captcha Plugins

Google Captcha is a free WordPress plugin that lets you implement secure captcha in the forms of your WordPress blog. You can add captcha in login, registration, password recovery and comment forms.

Most of the spammers comment on the blog by adding URLs in the URL field and comment content. This plugin will add captcha to stop bots from filling forms.

The plugin also gives an option to hide reCaptcha for the whitelisted IP addresses. You can also hide reCaptcha for certain user roles if you want. The plugin also comes with reCaptcha themes to select from. I am personally using this plugin on my blog.


2. Math Captcha

Math captcha plugin WordPress

Math Captcha is another nice WordPress plugin for adding captcha in different WordPress forms. It lets you integrate captcha not only on default WordPress forms but also in contact form 7 and bbPress forms if you are using any of these two plugins. It also supports multiple captchas on a single page and hides captcha to logged-in users if you want. You can also customize the captcha settings.

This plugin shows mathematical captcha. You can enable what mathematical options the plugin should use in the captcha. You can also select if you want to display catch as numbers or words.


3. Advanced noCaptcha & invisible Captcha

Advanced noCaptcha & invisible Captcha WordPress Plugin

This is also a good captcha plugin for WordPress. It can add noCaptcha or invisible captcha in Comment Form, Contact Form 7, bbPress, BuddyPress, woo-commerce, log in, Register, Lost Password, Reset Password and several other kinds of firms. The plugin also allows conditional login captcha or multiple captchas on the same page. You can also customize the theme or error message.



No CAPTCHA reCAPTCHA: Captcha Plugins WordPress

This is also a good captcha plugin for WordPress you can download and use. This plugin integrates Google’s reCAPTCHA in WordPress NO CAPTCHA reCAPTCHA available by Google for your WordPress registration, comments or lo forms. It also supports the BuddyPress registration form. Like other reCAPTCHA plugins, it also lets you select the theme. You just need to download and activate the plugin in your blog. Then enter Site Key and Secret Key to use reCAPTCHA.


5. WordPress Captcha Plugin

WordPress Captcha Plugins

This is also a powerful WordPress Captcha Plugin to block WordPress Captcha Plugin from WordPress websites. It lets you add different kinds of captchas including Google reCaptcha, math captcha, different text-based catch and more. You also get options to make Captcha tricky by adding lines, distortion, and noise.

It adds Captcha on Login Form, Registration Form, Comment Form, Admin Comment form. The plugin also supports WooCommerce, BuddyPress & Contact Form 7.


Wrap Up

I personally do not use captcha because most of the people hate it. Even I also hate filling captcha. So, you should try to use some alternate way. If you want to stop registration spam, disable registration of any user from the WordPress dashboard. For login, security plugins are enough. For comment, try using Disqus or akismet plugins.

Do you also use captcha in your WordPress blog? What do you do to reduce the spam of your blog? Share your views with us via comments.


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Deepanker Verma is the founder of Techlomedia. He is a tech blogger, developer and gadget freak.

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