ridhwanahsann

RMGCaptcha Math Guard adds a GDPR-friendly, math-based CAPTCHA to protect your forms from spam and brute force. No external services, no tracking, and fully WordPress.org compliant.
Features:
<ul>
<li>WordPress login protection (captcha on wp-login.php)</li>
<li>Contact Form 7 integration via [pmcMathcaptcha] / [pmcMathcaptcha*]</li>
<li>WooCommerce login and registration protection</li>
<li>Configurable difficulty and operations (Addition/Subtraction/Multiplication/Random)</li>
<li>Hide captcha for logged-in users</li>
<li>Custom error message support</li>
<li>Optional rate limiting and honeypot</li>
<li>Failed login log + logged user list (admin pages)</li>
<li>Translation-ready</li>
</ul>

RMGCaptcha Math Guard

A lightweight math CAPTCHA for WordPress login, Contact Form 7, and WooCommerce forms.

Ron Fredericks

WPMathPub renders mathematical equations in WordPress using the mathpublisher rendering engine, supporting both pmath native syntax and LaTeX-style input and generating high-quality PNG images with transparent backgrounds.
Unlike MathJax-based plugins, WPMathPub performs server-side rendering, producing static equation images that display consistently across browsers and devices without requiring client-side JavaScript.
This approach provides reliable rendering for:
<ul>
<li>WordPress posts, pages, and comments</li>
<li>Cached pages</li>
<li>Environments where JavaScript rendering is not desirable</li>
<li>RSS feeds and feed aggregators <a href="https://www.biophysicslab.com/2026/04/11/wpmathpub-latex-math-in-social-networks/" rel="nofollow ugc">RSS example</a></li>
</ul>
WPMathPub extends the classic mathpublisher engine with modern WordPress integration including shortcode support, LaTeX translation, image caching, and configurable rendering options.
<h3>Mathematical Equation Rendering</h3>
Mathematical expressions can be embedded directly into WordPress content using the pmath shortcode.
Example:
<pre><code>[pmath]x^2 + y^2 = z^2[/pmath]
</code></pre>
Custom size and color:
<pre><code>[pmath size=18 color="blue"]E = mc^2[/pmath]
</code></pre>
LaTeX input with inline text:
<pre><code>This is a fraction: [pmath latex=1]\frac{a}{b}[/pmath]
</code></pre>
Expressions are rendered as PNG images using the GD and FreeType libraries and cached for efficient reuse.
<h3>Features</h3>
<ul>
<li>pmath shortcode tag math expression rendering</li>
<li>Inline text with math images using pmath shortcode tag</li>
<li>Control of math image size and color</li>
<li>LaTeX command translation (<a href="https://www.biophysicslab.com/wordpress-math-publisher-plugin/wpmathpub-syntax/" rel="nofollow ugc">Check out the complete syntax list</a>)</li>
<li>Server-side PNG equation generation</li>
<li>Gutenberg WPMathPub math block with PMath and LaTeX mode switching</li>
<li>Halo-free color rendering with alpha transparency</li>
<li>Transparent background support for dark themes</li>
<li>Minimal WordPress database footprint</li>
<li>Efficient PNG image caching</li>
<li>WordPress admin tools panel
<ul>
<li>Configurable default equation size</li>
<li>Configurable default equation color with color picker</li>
<li>Installation status display</li>
<li>PNG image cache status and control</li>
<li>Policy control for cleanup on plugin delete</li>
</ul>
</li>
</ul>

WPMathPub

Render mathematical equations in WordPress as PNG images using pmath native syntax or LaTeX input with server-side rendering.

RMGCaptcha Math Guard vs WPMathPub