MailChimp for WordPress – Captcha


Add a Captcha field to your MailChimp sign-up forms.

This plugin requires you to install the following two plugins:

After installing the plugin, adding the following code to your sign-up forms will render a Google reCAPTCHA field.



MailChimp for WordPress – Captcha

Since this plugin depends on the MailChimp for WordPress plugin, you will need to install that first.

Installing the plugin

  1. In your WordPress admin panel, go to Plugins > New Plugin, search for MailChimp for WordPress – Captcha and click “Install now
  2. Alternatively, download the plugin and upload the contents of to your plugins directory, which usually is /wp-content/plugins/.
  3. Activate the plugin
  4. Add the following code to your form, where you want the captcha to appear.



How does this work?

After activating the plugin, you can render a Google reCAPTCHA field by adding the following code to your form mark-up.



I don’t get the reasoning here for a separate add-on

MailChimp 4 WP really ought to natively support reCAPTCHA. However, instead there is this weird little add-on plugin that is supposed to add CAPTCHA to the wonderful MC4WP. Only this add-on doesn't do anything unless you also install BestWebSoft's Google Captcha plugin... we'll I hate that plugin, it always breaks all sorts of things and spams my dashboards with banner ads, so no... I won't be installing it. Further, while yes I read the description and discovered this after only being frustrated for a half hour that it didn't work... it seems like this add-on ought to check that Google Captcha (reCAPTCHA) by BestWebSoft is installed and activated and if not throw a warning or something.... Really disappointed since I think both Boxzilla and MC4WP are otherwise brilliant.
Read all 3 reviews

Contributors & Developers

“MailChimp for WordPress – Captcha” is open source software. The following people have contributed to this plugin.



1.1.2 -February 16, 2018


  • Reset reCaptcha after form is submitted with errors when using AJAX.

1.1.1 – October 13, 2017


  • Issue with form being processed while captcha is invalid when using AJAX enabled forms.

1.1 – August 16, 2017

This update includes compatibility for the Google reCAPTCHA plugin.

Please note that this will break your existing captcha field if you’re still using the older Captcha plugin, which was pulled from the plugin repository.

1.0.2 – August 2, 2016


1.0.1 – March 1, 2016


  • Captcha validation always passing, regardless of input value.

1.0 – November 23, 2015

Initial release.