Shea Bunge

<blockquote>
Important: Since version 2.0, this plugin now requires at least PHP 5.3. Please ensure you are running the latest available version of PHP on your server.
</blockquote>
This plugin adds <a href="https://www.google.com/recaptcha/" rel="nofollow ugc">Google’s reCAPTCHA</a> to the BuddyPress registration page and WordPress login page to prevent bots from registering and keep your site free from spam registrations.
reCAPTCHA is “tough on bots, easy on humans”: while it is increbianle effective on preventing bots from registering, most of the time all the user needs to do to verify themselves is simply check a box.
After installing this plugin, you will need to <a href="https://www.google.com/recaptcha/admin" rel="nofollow ugc">register your site with Google</a> (requires a Google account) and enter the site key and secret key on the Settings > BuddyPress > Options admin menu. If you would prefer not to use Google’s service, there is an alternative security check method also available; see below;
Prior to version 2.0, a less effective security check method was used where the user needed to answer simple math sum before registering. This method is still available, and can be turned on on the Settings > BuddyPress > Options menu.
You can learn more at the <a href="https://bungeshea.com/plugins/bp-security-check/" rel="nofollow ugc">plugin’s website</a>, or on <a href="https://github.com/sheabunge/bp-security-check" rel="nofollow ugc">GitHub</a>
Translations
Thanks to the awesome work of the following translators, this plugin can be used in these languages:
<ul>
<li>Indonesian thanks to <a href="https://www.chameleonjohn.com/" rel="nofollow ugc">Jordan Silaen from ChameleonJohn.com</a></li>
<li>Russian thanks to <a href="http://superbwebsitebuilders.com/" rel="nofollow ugc">Howard Steele from SuperbWebsiteBuilders.com</a></li>
<li>Swedish thanks to <a href="http://tdh.me" rel="nofollow ugc">Thord D. Hedengren</a></li>
<li>French thanks to Frédérick Baldo</li>
<li>Serbo-Croatian thanks to <a href="https://webhostinggeeks.com" rel="nofollow ugc">Andrijana Nikolic from WebHostingGeeks</a> and <a href="http://firstsiteguide.com/" rel="nofollow ugc">Ogi Djuraskovic from FirstSiteGuide.com</a></li>
<li>Spanish thanks to Renato Alves</li>
<li>Hungarian thanks to Laszlo Espadas</li>
<li>Brazilian Portuguese thanks to Renato Alves</li>
<li>Danish thanks to Andreas Bjørn Hassing Nielsen</li>
<li>Italian thanks to <a href="http://nicolecurioni.com/" rel="nofollow ugc">Nicole Curioni</a></li>
<li>Belarusian thanks to <a href="https://www.ustarcash.com" rel="nofollow ugc">Natasha from uStarCash</a></li>
</ul>
If you have a translation to contribute, please sent it through to me <a href="https://bungeshea.com/contact/" rel="nofollow ugc">by email</a> or <a href="https://github.com/sheabunge/bp-security-check/pulls" rel="nofollow ugc">on GitHub</a>.

BuddyPress Security Check

Combat spam registrations for a BuddyPress-powered site using Google's reCAPTCHA

Ron Fredericks

WPMathPub renders mathematical equations in WordPress using the Mathpublisher rendering engine, supporting both native pmath syntax and LaTeX-style input. It generates fast, high-quality PNG images with halo-free transparent backgrounds for reliable display across posts, pages, comments, and RSS feeds.
The plugin also includes Math-Pub Rosetta, a standalone app built on the same Mathpublisher engine. Rosetta mirrors WPMathPub’s behavior outside WordPress, allowing users to publish math anywhere – as a WPMathPub pmath tag learning tool, as a gateway to any LaTeX-enabled document (including Microsoft Office and Overleaf), or directly in WordPress comments. (<a href="https://math-pub.org/mathpub-rosetta/rosetta.php" rel="nofollow ugc">Launch the Rosetta app</a>)
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.
Basic native usage:
<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>
Normal, upright text with the same inherited color and size:
LaTeX example – <code>[pmath size=24 color="#006687" latex=1]\text{This is a fraction:}\,\frac{a}{b}[/pmath]</code> 
Native example – <code>[pmath size=24 color="#006687"]text{NPV(CF, R) := } text{IV} + delim{[}{ sum{k=1}{N}{ {text{CF}_k}/{(1+text{R}/100)^k}}}{]}[/pmath]</code>
Expressions are rendered as PNG images using the GD and FreeType libraries and cached for efficient reuse. Rosetta extends this with visual error checks and copy to clipboard buttons that move your equations into WPMathPub content, external presentation tools, or anywhere PNG images are accepted. The result lives up to Rosetta’s tagline: Your math. Any platform.
<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>Math-Pub Rosetta application
<ul>
<li>Enter math syntax manually, starting with examples, or using the Math Insert Menu</li>
<li>Paste pmath tags from WPMathPub enabled content into the Math Test Area</li>
<li>Allow external users to post math content into comments after visual inspection</li>
<li>Math Insert Menu includes search, category, and show all for easier syntax use</li>
<li>Copy resulting math to clipboard</li>
<li>Copy out and past in allows for roundtrip math syntax development with WPMathPub</li>
<li>Target audience includes WPMathPub users, new LaTeX learners, and image reuse</li>
</ul>
</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.

BuddyPress Security Check vs WPMathPub