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  7. ThinkCaptcha – Captcha for Login, Register and WooCommerce

ThinkCaptcha – Captcha for Login, Register and WooCommerce

Add a captcha to your WordPress and WooCommerce login, registration, and password forms to stop spam, bots, and brute-force attacks.

40+ active installsFree on WordPress.org
View on WordPress.orgSupport forum
Will this break my store?

What the WordPress.org registry says about keeping ThinkCaptcha – Captcha for Login, Register and WooCommerce running.

WordPress compatibility
Tested to 7.1.1
Tested against the WordPress branch in use today.
Last updated
3 days ago
At least 7.0 releases a year since launch. WordPress.org only lists versions still available for download, so the real number may be higher.
Requires PHP
false
Your host must be running at least this version.
Requires WordPress
5.5
Contributors
1
A single maintainer. Worth knowing if the plugin is load-bearing for your store.
40+ active installsWordPress.org reports installs in bands, not exact counts.
Maintenance & trust

Scored on how ThinkCaptcha – Captcha for Login, Register and WooCommerce is looked after — not on how many stores run it.

Well maintained
Not enough public feedback to put a confident number on this one. Little public feedback — score rests mostly on release activity. What we can see is below.
Maintenance
35 / 35
Updated 3 days ago.
WordPress compatibility
20 / 20
Tested to WP 7.1.1 (current).
Support responsiveness
Not enough data
Only 0 support thread(s) — not enough to judge.
Merchant satisfaction
Not enough data
No ratings yet.
Listing transparency
10 / 10
Provides: screenshots, description, homepage
2 of 5 measures had too little evidence to score. They are left out of the total rather than counted as zero — otherwise a plugin would be marked down for being small rather than for being poorly kept.Measured 2026-09-22 from the WordPress.org plugin registry.
Ratings

No one has rated this plugin on WordPress.org yet. That is a statement about the ratings page, not about the plugin — plenty of well-kept plugins never collect them.

ThinkCaptcha adds a simple, effective captcha to the WordPress and WooCommerce forms that get attacked the most, so you can stop spam registrations, brute-force login attempts, and junk submissions.

It uses Google’s familiar “I’m not a robot” checkbox (reCAPTCHA v2) and turns it on with a single toggle — no coding needed. The captcha only loads on the pages that actually use it, so it stays light on performance.

Free features

  • Captcha on the WordPress login form to slow down brute-force attacks.
  • Captcha on the WordPress registration and password-reset forms.
  • Captcha on the WooCommerce login, registration, and password-reset forms.
  • Loads asynchronously and only where it’s needed.

ThinkCaptcha Pro

Want to protect the rest of your site? ThinkCaptcha Pro extends the same captcha to:

  • The WooCommerce checkout, to help prevent fraudulent and spam orders.
  • Contact Form 7 and WPForms submissions.
  • The default WordPress registration form.

Third-Party Service Disclosure

This plugin connects to the Google reCAPTCHA service to tell humans and bots apart.

  • Service used: Google reCAPTCHA (provided by Google LLC).
  • What is sent: to verify a visitor is human, the service collects and sends device and application data, along with the visitor’s IP address, to Google.
  • When it is sent: whenever a protected form is displayed and submitted.
  • Policies: use of Google reCAPTCHA is subject to Google’s Privacy Policy and Terms of Service.

How do I add a captcha to the WordPress login form?

After adding your Google reCAPTCHA keys, open the ThinkCaptcha settings page and enable “WordPress – Login Form”. The captcha is added to your login page automatically, which helps protect against brute-force attacks.

Can I add a captcha to my WooCommerce forms?

Yes. You can enable the captcha on the WooCommerce login, registration, and password-reset forms from the settings panel. The WooCommerce checkout is available in the Pro version.

Does the plugin support Contact Form 7 or WPForms?

Contact Form 7 and WPForms are supported in the Pro version.

What is the difference between a captcha and reCAPTCHA?

“Captcha” is the general term for a test that tells humans and bots apart. reCAPTCHA is Google’s version of it, which uses risk analysis for a smoother experience. ThinkCaptcha uses reCAPTCHA v2.

Does the plugin slow down my site?

No. The script loads asynchronously and only on pages where the captcha is active, so it does not block your pages from loading.

Categories
Security & spamAccounts & CRM
Plugin details
Version1.1.9
Last updated2026-09-19 10:34am GMT
Added2025-09-20
Requires WordPress5.5
Tested up to7.1.1
Requires PHPfalse
Tags on WordPress.org
captcha
login
recaptcha
spam
woocommerce
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CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
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