Invisible reCaptcha

Description

Invisible reCaptcha for WordPress is an extremely powerful plugin which integrates the new Invisible reCaptcha by Google with your WordPress site.

External service disclosure

This plugin is designed to integrate reCAPTCHA by Google into your site, which is an external third-party service used to implement security and fraud prevention measures. The plugin may communicate with the reCAPTCHA service via API and/or by loading assets on your site’s frontend, resulting in data transfer with the reCAPTCHA service when the site frontend is accessed and/or when reCAPTCHA validation is triggered by to user actions. In addition to authentication and operational data such as API keys and reCAPTCHA identifiers, the service may receive information from your and your users’ browser and network, such as their IP address, user agent, etc.

Use of the reCAPTCHA service is subject to the Google Cloud Terms of Service, Service Specific Terms, Google Privacy Policy, and the Cloud Data Processing Addendum.

This plugin is not affiliated with or endorsed by Google.

Summary of features

WordPress Invisible reCaptcha

- Login form protection - annihilates Brute Force attacks
- Registration form protection
- Comments form protection
- Forgot Password form protection

WooCommerce Invisible reCaptcha

- Login form protection
- Registration form protection
- Product Review form protection
- Lost Password form protection
- Reset Password form protection

Contact Form 7 Invisible reCaptcha
– Protect your Contact Form 7 forms with Invisible reCaptcha

Gravity Forms Invisible reCaptcha
– Protect your Gravity Forms with Invisible reCaptcha

Ultra Community Invisible reCaptcha
– Login form protection
– Registration form protection

BuddyPress Invisible reCaptcha
– Protect your BuddyPress registration form with Invisible reCaptcha

Compatibility

On a WP Multisite you can either activate the plugin network wide or on a single site.

How-To

Check out the Invisible reCAPTCHA v2 Guide: https://developers.google.com/recaptcha/docs/invisible

  1. Create a reCAPTCHA v2 site using the Invisible reCAPTCHA badge option: https://www.google.com/recaptcha/admin/create
  2. Copy the Site Key and Secret Key from the Google reCAPTCHA admin console.
  3. In WordPress, go to Settings > Invisible reCaptcha > Settings.
  4. Enter your Site Key and Secret Key.
  5. Save the settings.
  6. In the settings, choose which forms should be protected by reCAPTCHA.
  7. Visit a page containing a protected form and verify that the reCAPTCHA badge is displayed and that form submissions are working correctly.

Extending Invisible reCaptcha

Here are some useful hooks to help developers integrate Invisible reCaptcha with any plugin or custom form

Actions

- google_invre_render_widget_action - renders the recaptcha widget

Filters

- google_invre_is_valid_request_filter   - used to check if Google approved the request (returns bool true/false)
- google_invre_widget_output_html_filter - used to change the recaptcha widget output
- google_invre_language_code_filter      - used to change the badge/challenge language code
- google_invre_badge_position_filter     - used to change the badge position (possible returning values are: 'bottomright', 'bottomleft', 'inline')

Examples of using Invisible reCaptcha hooks

  • Add Invisible reCaptcha into any form

    Just call
    do_action(‘google_invre_render_widget_action’);
    anywhere before form closing tag

  • Validate form post request

    $is_valid = apply_filters(‘google_invre_is_valid_request_filter’, true);
    if( ! $is_valid )
    {
    // handle error here
    }
    else
    {
    // continue with your logic
    }

  • Change the badge/challenge language code

    add_filter( ‘google_invre_language_code_filter’, ‘myprefix_change_recaptcha_language’ );
    function myprefix_change_recaptcha_language($language_code){
    $language_code = ‘fr’; // French
    return $language_code;
    }

See all reCaptcha Language Codes

Note: This plugin requires PHP 7.0 or higher to be activated.

Reviews

October 31, 2025
Our site was created in 2020 and it’s been a while since it was maintained. Now when we login, the reCaptcha appears but with no field to enter or mark the captcha in, thus causing failed logins.
June 21, 2023
<p>We use v2 recaptcha code + this plugin on a “all” of our sites with gravity forms. Unfortunately we have GF on the home page (for capturing leads) where this loads and it adds a bunch of bloat (granted from google). It would be nice if there was a way to optimize this so it didn’t load an additional 20-25 requests. </p> <p>Pros: drops spam considerably with gravity forms. Easy to implement.<br> Cons: slows your pagespeed scores down, can’t defer JS otherwise it may not work. Adds about 20 or more resources from google just to enable recaptcha v2.</p> <!– wp:paragraph –> <p>UPDATE – invisible captcha has not worked for a very long time. I don’t believe it’s a plugin issue, it’s just the captcha service does not really work anymore. Bots have figured a way around this.</p> <!– /wp:paragraph –>
March 23, 2021
Thanks to this plugin not having been tested with the last 3 major WordPress updates, it managed to break my CF7 forms and Google Analytics form submission tracking from one day to the other. It looks like this plugin was abandoned, so I strongly advise against installing it. Unreliable!
Read all 133 reviews

Contributors & Developers

“Invisible reCaptcha” is open source software. The following people have contributed to this plugin.

Contributors

“Invisible reCaptcha” has been translated into 14 locales. Thank you to the translators for their contributions.

Translate “Invisible reCaptcha” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

1.3.1

  • Removed inactive WooCommerce checkout protection code (commit details).
  • Removed unused licensing and external module-loading infrastructure.
  • Declared PHP 7.0 as the minimum supported PHP version.
  • Updated WordPress compatibility metadata.
  • Added a link to the Google Privacy Policy to the external service disclosure.
  • Corrected the setup documentation to specify Invisible reCAPTCHA v2.

1.3.0

  • PHP 8 compatibility
  • Removed the custom CSS feature

1.2.3

1.2.2

  • Fixed the compatibility with WPML 4.x – the multilingual WordPress plugin

1.2.1

1.2

1.1

  • Fixed PHP wrong Namespace issue
  • Fixed PHP warning when contact forms settings were saved for the first time
  • Moved Plugin Menu to Settings
  • Fixed PHP warning when contact forms settings were saved for the first time
  • Moved Plugin Menu to Settings

1.0.8

1.0.6

  • Fixed WooCommerce login and registration issue
  • Added Invisible reCaptcha for BuddyPress

1.0.5

  • Fixed Contact Form 7 issue reported by @silvercode
  • Added Invisible reCaptcha for Gravity Forms

1.0.4

  • Multisite compatible
  • Network interface ready
  • Fixed PHP7 warning

1.0.3

  • Added WordPress hooks for custom forms/plugins integrations

1.0.2

  • Added Badge Position option
  • Added Badge Custom CSS option
  • Added Language option

1.0.1

  • Fixed the Strict Standards Warning on PHP 5.4+

1.0

  • Initial release