WP-MediaWiki adds a subset of MediaWiki markups to WordPress. 
Currently, the following MediaWiki markups are supported.
<ul>
<li>Bold</li>
<li>Italic</li>
<li>Heading</li>
<li>Lists: Besides the list markups come from MediaWiki, I also added a continuation markup such that users can put preformatted text in a list item.</li>
<li>Tables</li>
<li>External links</li>
<li>WikiLinks: the wikilink will link to Wikipedia by default, you can change the wiki site in the admin option page.</li>
<li>Table of content</li>
<li>Horizontal line</li>
<li>Preformatted text</li>
</ul>
For more information about MediaWiki markups, please refer to http://meta.wikimedia.org/wiki/Help:Editing. 
For a demo of this plugin, please refer to http://zechs.dyndns.org/wordpress/?page_id=152. 
There is also a sandbox (http://zechs.dyndns.org/wordpress/wp-content/files/wp-mediawiki/sandbox/index.php) for you to preview the effect of this plugin.

WP-MediaWiki

WP-MediaWiki is a plugin for WordPress. It adds a subset of MediaWiki markups to WordPress.

Kevin Gillispie

Schema Scalpel 2.0 delivers surgical precision to your WordPress structured data. The headline feature: a brand-new metabox right inside the post/page editor (Gutenberg and Classic), letting you create, edit, and manage custom JSON-LD schemas without ever leaving the content screen.
No bloated page builders or separate dashboards for everyday use — just fast, intuitive schema editing where you already work, with real-time AJAX saves and a modern, clean interface.
<h3>Core Benefits & Features</h3>
<ul>
<li>New in 2.0: Powerful Editor Metabox — Add/edit/delete per-post/page schemas directly in the editor. Real-time saving, syntax-highlighted JSON editor, visual separation of local vs global schemas.</li>
<li>Examples Library — One-click copy of Google-recommended templates (FAQPage, Article, HowTo, Recipe, Product, Organization, Breadcrumb, and more).</li>
<li>Per-Page Precision — Override or supplement global schemas for ultimate control — ideal for blogs, eCommerce, local businesses, and agencies.</li>
<li>Global & Homepage Schemas — Still fully supported via the dedicated Schema Scalpel dashboard.</li>
<li>Improved Security — Hardened against XSS (titles, URLs, breadcrumbs fully sanitized), secure JSON encoding, strict input validation — building on previous critical fixes.</li>
<li>Compatibility — Works flawlessly alongside Yoast SEO, Rank Math, and All in One SEO. Easily disable their schema output to avoid duplication.</li>
<li>Lightweight & Performant — Pure JSON-LD injection, no frontend bloat, optimized database storage.</li>
<li>Safe Uninstall — Optional setting to clean up data on deletion — respect privacy and keep your site secure.</li>
<li>Modern Codebase — Strict typing, full WordPress Coding Standards compliance, PHP 7.4+ compatibility.</li>
</ul>
Whether you’re chasing rich results (stars, carousels, FAQs), improving entity understanding, or just giving search engines cleaner data — Schema Scalpel makes it effortless and reliable.
Install today and start enhancing click-through rates and visibility!

Schema Scalpel

Add custom JSON-LD schema markup per post or page with a powerful new editor metabox – precise, fast, and SEO-boosting.

WP-MediaWiki vs Schema Scalpel