<h4>Why this plugin exists</h4>
Original Plugin (discontinued): https://de.wordpress.org/plugins/json-ld-for-article/
Sadly, the original plugin is not being developed anymore. So I decided to fix some bugs like invalid markup, 
 missing tags, putting objects into fields instead of just URLs for images, and implementing for more than just 
 articles.
Also, this plugin plays nicely with <a href="https://de.wordpress.org/plugins/yet-another-stars-rating/" rel="nofollow ugc">YASR – yet another star rating</a>. It will 
remove yasr’s invalid jsonld-syntax and instead use YASRs rating.
All requests are being cached and purged on page update/edit etc.
<a href="https://waffle.io/bmhm/wp-jsonld" rel="nofollow ugc"></a>
<h4>Original description</h4>
Search engines such as Google are using structured data markup in many ways—for example, to create rich snippets in search results. Search results with rich snippets will improve your click through rates and increase the number of visitors on your website.
It has been a tedious task to add the complicated Schema.org markup to your website – sometimes it wasn’t even possible due to technical constraints. Now, thanks to JSON-LD, almost any website can enjoy the benefits of structured data. For WordPress users it’s even easier thanks to this plugin.
JSON-LD for Article is simply the easiest solution to create valid schema.org microdata markup on your WordPress site automatically from your web content and its metadata. All you need to do is install and activate the plugin, and it will generate JSON-LD markup of your posts that Google and other search engines can use for rich snippets using the schema.org for articles.
Some WP themes include traditional schema.org markup embedded in the html code the theme produces. If you are using one of these themes, this plugin is probably not necessary. If the markup produced by the theme contradicts the data specified in the JSON-LD, the added information might be not be helpful at all. Thus you should check the markup provided by the theme before adding possibly unnecessary JSON-LD to your site.
On the other hand, if you use a custom theme, it is easier to use the functionality provided by the plugin than to invent the wheel again and add the markup in html. Very often, this leads to html code that is difficult to read and is not valid structural markup according to Google’s validator.
Our plugin:
<ul>
<li>Helps your site to earn rich snippets in Google’s SERP.</li>
<li>Does not depend on other plugins or external code.</li>
<li>Is simple to install: plug-and-play, no need to configure anything.</li>
</ul>

wp-jsonld

wp-jsonld is the continuation of the simplest solution to add valid schema.org microdata as JSON-LD-script to your blog posts and articles.

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-jsonld vs Schema Scalpel