How do I add Friendly Captcha to a custom or unsupported form?

Enable the Generic Integration (for custom and unsupported plugins) option in the Friendly Captcha settings page. This exposes two WordPress filters that you can use from your own theme or plugin code to render the widget and verify the solution. 1. Render the widget inside your form Apply the frc_captcha_append_widget filter to append the widget HTML wherever you want it to appear (typically just before the submit button): 2. Verify the solution on submit When the form is submitted, read the captcha solution from $_POST and pass it through the frc_captcha_validation filter. The second argument controls the network-failure behavior: true lets the user through (lax), false blocks them (strict). If you have Friendly Captcha v2 enabled, use frc-captcha-response as the field name instead of frc-captcha-solution.

by Friendly Captcha 4.1 (18 reviews)

Friendly Captcha for WordPress

Name: Friendly Captcha for WordPress
Rating: 4.1 (18 reviews)
Author: Friendly Captcha

Friendly Captcha is a privacy-first anti-bot solution that protects WordPress website forms from spam and abuse.

Friendly Captcha for WordPress ranks #2,189 among WordPress.org plugins with 10,000+ active installations, is #64 of 2,885 in the Discussion & Community category, a 4.1/5 rating from 18 reviews, and was last updated Sep 7, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v1.18.0 Current Version v1.18.0

Updated 1 week ago Last Update on 07 Sep, 2026

Refreshed 13 hours ago Last Refreshed on

#64 of 2,885 in Discussion & Community Top 5% by installs Downloads -77.7% this week Actively maintained

View on WordPress.org

Rank

#2,189

— No change

Active Installs

10K+

-2.6%

KW Avg Position

0.5 better

Downloads

265.2K

+169 today

Support Resolved

— No change

Rating

82%

Review 4.1 out of 5

4.1 (18 reviews)

Next Milestone 20K

Total Progress 4.1%

10K+ 20K+

769

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Need 9,589 more installs to reach 20K+

Rank Changes

Current #2,189

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Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

4.1

18 reviews

Overall 82%

12 (67%)

0 (0%)

2 (11%)

1 (6%)

3 (17%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

Resolution Rate

Security History

Source: WPVulnerability

No known vulnerabilities on record for Friendly Captcha for WordPress. Checked 1 week ago.

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Plugin Details

Version: 1.18.0
Last Updated: Sep 07, 2026
Requires WP: 5.0+
Tested Up To: 7.1
PHP Version: 7.3 or higher
Author: Friendly Captcha

Support & Rating

Rating: ★ ★ ★ ★ ☆ 4.1
Reviews: 18
Support Threads: 1
Resolved: 0%

Keywords

antispam captcha contact form recaptcha spam

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners who need to protect forms from spam and abusive bots. It replaces traditional CAPTCHA challenges with a proof-of-work puzzle solved silently by the visitor's device, avoiding personal data collection and cookies.

Protects WordPress Login Form
Protects WordPress Register Form
Protects WordPress Reset Password Form
Protects WordPress Comments
Integrates with Contact Form 7
Integrates with WooCommerce forms
Integrates with Gravity Forms
No cookies used

Frequently Asked Questions

Common questions about Friendly Captcha for WordPress

The Friendly Captcha plugin supports WordPress core and many plugins with forms automatically. To use Friendly Captcha, you can create an account at www.friendlycaptcha.com and create a Site Key and API Key there. It is best to copy both keys and save them in a safe place. Then go to the Friendly Captcha plugin settings page and enter the created site key and API key. Below that, select the forms you want to protect. Finally, save these settings by clicking on the "Save Changes" button at the end of the settings page.

Open a PR on GitHub here or just email the authors of the plugin itself. Adding Friendly Captcha support is typically quite a quick task for most plugins.

Enable the Generic Integration (for custom and unsupported plugins) option in the Friendly Captcha settings page. This exposes two WordPress filters that you can use from your own theme or plugin code to render the widget and verify the solution. 1. Render the widget inside your form Apply the frc_captcha_append_widget filter to append the widget HTML wherever you want it to appear (typically just before the submit button): <?php echo apply_filters('frc_captcha_append_widget', ''); ?> 2. Verify the solution on submit When the form is submitted, read the captcha solution from $_POST and pass it through the frc_captcha_validation filter. The second argument controls the network-failure behavior: true lets the user through (lax), false blocks them (strict). <?php $solution = isset($_POST['frc-captcha-solution']) ? $_POST['frc-captcha-solution'] : ''; $is_human = apply_filters('frc_captcha_validation', $solution, true); if (!$is_human) { // Reject submission, e.g. show an error. } ?> If you have Friendly Captcha v2 enabled, use frc-captcha-response as the field name instead of frc-captcha-solution.

Please see our website at: www.friendlycaptcha.com