captchaapi

Protects WooCommerce (login, registration, lost password, checkout), WPForms, Fluent Forms, Formidable Forms, Forminator and Contact Form 7 – cookieless, EU-hosted, no cookie banner required.
A privacy-first alternative to reCAPTCHA: captchaapi.eu stops form spam without making your visitors click traffic lights. A free tier with commercial use allowed gets you started. The work happens in the background: the visitor’s browser solves a small proof-of-work puzzle while they fill in the form, and a signed token rides along with the submission. There is nothing to solve and nothing to see.
Your server checks that token locally with your secret key. No request is sent back to captchaapi.eu when a form is submitted, so the check adds no network latency and keeps working even if our service is briefly unreachable.
The service runs on hardware in the EU (Nuremberg, Germany). It sets no cookies and writes no per-visitor record to a database; the visitor’s IP address is used only transiently for rate limiting and abuse detection.
<h4>What it protects</h4>
<ul>
<li>Login (wp-login.php and WooCommerce)</li>
<li>Registration (WordPress and WooCommerce)</li>
<li>Lost password (WordPress and WooCommerce)</li>
<li>Comments</li>
<li>WooCommerce checkout</li>
<li>Contact Form 7</li>
<li>WPForms</li>
<li>Fluent Forms</li>
<li>Formidable Forms</li>
<li>Forminator</li>
</ul>
Each surface can be turned on or off from the settings screen. Integration options for Contact Form 7, WooCommerce, and the supported form plugins appear only when that plugin is active.
<h4>How it works</h4>
<ol>
<li>The widget loads on the pages with a protected form and solves a proof-of-work puzzle in a Web Worker.</li>
<li>On submit, it attaches a short-lived, signed attestation to the form.</li>
<li>The plugin verifies the attestation with your secret key (an HMAC check) and rejects the submission if it is missing, forged, expired, or reused.</li>
</ol>
Reuse is blocked with a single-use record per token. If your site has a persistent object cache (Redis or Memcached), that record lives there. Otherwise the plugin keeps a small table and clears expired rows on a schedule.
<h4>You need an account</h4>
This plugin connects to the captchaapi.eu service. Create a project at https://captchaapi.eu to get a site key and a secret key. A free tier is available.
<h3>External services</h3>
This plugin connects to captchaapi.eu, a third-party CAPTCHA service, to protect your forms from spam. It is required for the plugin to function.
On any public page that contains a protected form, the plugin loads the service’s widget script (captcha.js) from your configured captchaapi.eu endpoint. The visitor’s browser then communicates with the captchaapi.eu API to perform a proof-of-work challenge and obtain a signed attestation that is attached to the form on submit. This happens for every visitor who loads a protected form.
To issue and validate an attestation the service receives your public site key, the proof-of-work result, and – as with any HTTP request – the visitor’s IP address. The IP address is used for rate limiting and abuse/bot detection (including a coarse, IP-derived country) and is processed transiently: a hashed form and aggregate counters are held briefly in a cache. No raw IP address and no per-visitor record are written to a database. The service sets no cookies. Data is processed on servers in the EU (Nuremberg, Germany).
Verification of the attestation on submit is performed locally on your server with your secret key; no request is sent back to captchaapi.eu at that point.
<ul>
<li>Service provider: captchaapi.eu</li>
<li>Terms of Service: https://captchaapi.eu/legal/terms</li>
<li>Privacy Policy: https://captchaapi.eu/legal/privacy</li>
</ul>

GDPR Cookieless CAPTCHA for WooCommerce & Forms – captchaapi.eu

Cookieless, EU-hosted reCAPTCHA alternative for WooCommerce, WPForms, Fluent Forms & CF7. GDPR-clean, no cookie banner.

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.

GDPR Cookieless CAPTCHA for WooCommerce & Forms – captchaapi.eu vs Login Security Captcha