tapcha

<p>Adds a tapcha form tag to Contact Form 7. You can use it by adding [tapcha* name] to your form in Contact Form 7.<br />
This plugin makes use of the API from tapcha.co.uk to generate Tapcha challenges and to check whether the response is correct.</p>
<h3>Tapcha API</h3>
<p>This plugin will make requests to our API hosted at api.tapcha.co.uk. A request will be made to it in the following circumstances:<br />
– When a short code / form tag is used, a request will be made to generate the challenge to display on page load<br />
– When users respond to a challenge, a request is made to the API to verify whether the response is correct<br />
– If you have entered an admin key in the settings page, a request will be made to gather statistics that will be shown below</p>
<p>For more information please read our:<br />
– Terms of service at http://tapcha.co.uk/terms-of-service<br />
– Privacy policy at http://tapcha.co.uk/privacy-policy</p>


Tapcha

A gesture based CAPTCHA scheme. Integrates with Contact Form 7

Suraj Kumar Sinha

<p><strong>ZigZag Image Captcha for Contact Form 7</strong> adds a powerful, image-based captcha field designed to protect your forms from spam and bots.</p>
<p>The plugin generates a <strong>zig-zag distorted captcha image</strong> with background noise, dots, lines, and randomized angles — making it extremely difficult for automated bots to solve.</p>
<p>It integrates seamlessly with <strong>Contact Form 7</strong>, works fully with <strong>AJAX submissions</strong>, and displays <strong>native CF7 validation errors</strong>.</p>
<h3>🔒 Features</h3>
<ul>
<li>Secure zig-zag distorted image captcha  </li>
<li>Random characters with noise, distortion, and angled letters  </li>
<li>One-click image refresh  </li>
<li>Session-based secure validation  </li>
<li>Expiration timer with auto-regeneration  </li>
<li>Native Contact Form 7 error messages  </li>
<li>Works with AJAX and non-AJAX forms  </li>
<li>Lightweight and optimized  </li>
<li>No external API required  </li>
<li>Fully responsive and accessible  </li>
</ul>
<h3>⚙️ Notes</h3>
<ul>
<li>Requires <strong>Contact Form 7</strong> to be installed and active</li>
<li>No third-party services or tracking</li>
<li>Fully self-hosted captcha generation</li>
</ul>
<h3>How to Use</h3>
<ol>
<li>Open <strong>Contact Form 7 <span aria-hidden="true" class="wp-exclude-emoji">→</span> Edit Form</strong></li>
<li>Insert the captcha field where you want it to appear: <code>[imagecaptcha* cf7_image_captcha]</code></li>
<li>Save the form</li>
<li>Done! 🎉 The captcha will automatically validate submissions</li>
</ol>
<blockquote>
<p>The <code>*</code> makes the captcha field <strong>required</strong>.</p>
</blockquote>


ZigZag Image Captcha for Contact Form 7

Adds a secure, flexible image captcha field to Contact Form 7 with zig-zag protection, timer, refresh, AJAX validation, and accessibility support.

Tapcha vs ZigZag Image Captcha for Contact Form 7