Jetpack makes it easy to add contact forms to your WordPress site, but you may want a simple way to add a Google reCAPTCHA to prevent spam. This plugin will manipulate the Jetpack [contact-form] shortcode to prepend the Google script, add a button, and parse the response.

This plugin allows both reCAPTCHA v2 and invisible reCAPTCHA (see screenshots and choose whatever works for you!).

Shoot me a question about it on Twitter: @bozdoz.

This plugin is open source on GitHub!

None yet! Shoot me a question about it on Twitter: @bozdoz.

0.2.2

• Added additional isset checks to fix undefined index errors.

0.2.1

• Renamed plugin to reCAPTCHA Jetpack; added minor Google response validation and nonce verification.

0.2.0

• Added invisible reCAPTCHA; fixes to plugin activation.

0.1.0

• First Version. Basic [contact-form] manipulation.

1. Install from the WordPress plugin install page in the admin.

OR

1. Choose to add a new plugin, then click upload
2. Upload the recaptcha-jetpack zip
3. Activate the plugin through the 'Plugins' menu in WordPress

Register with Google reCAPTCHA and fill in your site key, and secret key (also, choose which kind of reCAPTCHA; see other screenshots for examples)



Example Jetpack form with reCAPTCHA v2.



Example Jetpack form with invisible reCAPTCHA.