ScriptsTown

Login Security Captcha is a security plugin for WordPress to add CAPTCHA or CAPTCHA-free services such as Cloudflare Turnstile and Google reCAPTCHA to the WordPress login, registration, lost password, and comment form. This is a fast and lightweight security plugin to place captcha on standard WordPress forms with minimal footprints. It can prevent spam comments and protect the login form against Brute-force attacks. It has simple settings to configure the plugin quickly.
The plugin supports Cloudflare Turnstile, Google reCAPTCHA Version 2, and Version 3 with multiple options. This is the best WordPress captcha plugin for antispam protection to secure comment form and WordPress login page. It allows you to place different versions of reCAPTCHA and also Turnstile on different forms at the same time. This plugin comes with a set of simple options to quickly set up captcha validation on the common forms.
Using this security plugin, you can change the captcha theme to light or dark depending on your preferences for Cloudflare Turnstile and Google reCAPTCHA. You can also configure various other parameters like the score value for reCAPTCHA version 3. You can monitor the error logs and have the option to disable the captcha on the comment form for logged-in users. Also, you can adjust the captcha size to compact or normal for Cloudflare Turnstile.
<h3>Login Security Captcha Features</h3>
<ul>
<li>Cloudflare Turnstile</li>
<li>Google reCAPTCHA v2</li>
<li>Google reCAPTCHA v3</li>
<li>Set reCAPTCHA v3 Position</li>
<li>Captcha Theme and Size</li>
<li>Secure Login Form</li>
<li>Secure Registration Form</li>
<li>Secure Lost Password Form</li>
<li>Protect Comment Spam</li>
<li>Monitor Error Logs</li>
<li>Prevent Brute-force Attack</li>
</ul>
Upgrade To Pro – <a href="https://scriptstown.com/wordpress-plugins/login-security-pro/#pricing" title="Get Pro Version" rel="nofollow ugc">Get Pro Version</a>
<h3>Login Security Pro Features</h3>
<ul>
<li>Limit Login Attempts by IP Address</li>
<li>Check and Monitor Last Login</li>
<li>Check Login History by Username</li>
<li>Recent Login Dashboard Widget</li>
<li>Cloudflare Turnstile Support</li>
<li>Google reCAPTCHA v2 and v3</li>
<li>Redirect after Login or Logout</li>
<li>Role-Based Redirection</li>
<li>Secure Login and Registration Form</li>
<li>Secure Lost Password Form</li>
<li>Easy to Protect Comment Spam</li>
<li>Login Form – WooCommerce</li>
<li>Lost Password Form – WooCommerce</li>
<li>Registration Form – WooCommerce</li>
<li>Secure WooCommerce Checkout Form</li>
<li>Advanced Security and Much More</li>
</ul>
Check Pro Plugin – <a href="https://scriptstown.com/wordpress-plugins/login-security-pro/" title="View Pro Features" rel="nofollow ugc">View Pro Features</a>

Login Security Captcha

Secure WordPress login, registration, and comment form with Google reCAPTCHA or Cloudflare Turnstile. Prevent Brute-force attacks and more.

cartpauj

Cartpauj Register Captcha does one simple task. It prevents SPAM signups through WordPress’s default registration form. There are no settings to configure. Just activate and watch those SPAM sign-ups fade away! Requires openssl PHP library.
<h4>Features</h4>
<ul>
<li>Adds CAPTCHA to the WordPress register sign-up form.</li>
<li>NO settings or configurations to deal with.</li>
</ul>
<h3>Note</h3>
Built with a modified version of Phoca Captcha PHP library 
Icon by <a href="http://www.flaticon.com/authors/freepik" rel="nofollow ugc">Freepik</a>

Cartpauj Register Captcha

Cartpauj Register Captcha does one simple task. It prevents SPAM signups through WordPress' default registration form.

Login Security Captcha vs Cartpauj Register Captcha