Title: MarkupLoom – JSON-LD Manager
Author: Saubhik M
Published: <strong>September 27, 2026</strong>
Last modified: September 27, 2026

---

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# MarkupLoom – JSON-LD Manager

 By [Saubhik M](https://profiles.wordpress.org/saubhikm/)

[Download](https://downloads.wordpress.org/plugin/markuploom-json-ld.1.0.0.zip)

 * [Details](https://wordpress.org/plugins/markuploom-json-ld/#description)
 * [Reviews](https://wordpress.org/plugins/markuploom-json-ld/#reviews)
 *  [Installation](https://wordpress.org/plugins/markuploom-json-ld/#installation)
 * [Development](https://wordpress.org/plugins/markuploom-json-ld/#developers)

 [Support](https://wordpress.org/support/plugin/markuploom-json-ld/)

## Description

MarkupLoom provides a focused interface for adding structured data to individual
WordPress content items.

Multiple schemas can be assigned to the same Page, Post, or WooCommerce Product.
Enabled individual schemas are combined into a JSON-LD @graph.

The plugin also provides a global schema manager for site-wide rules.

### Features

 * Multiple schemas per Page, Post, and WooCommerce Product.
 * Checkbox-based Post Type selection for global schemas.
 * Individual schema controls inside the WordPress editor.
 * JSON-LD @graph output for multiple individual schemas.
 * Product schema support for WooCommerce.
 * Custom JSON-LD support.
 * Dynamic placeholders for common WordPress values.
 * Global schema rules for the entire site, homepage, singular content, or selected
   post types.
 * Schema type allow-list.
 * Nonce and capability checks.
 * Safe JSON-LD encoding to prevent script-tag breakout.

### Supported Schema Types

Pages:

 * WebPage
 * AboutPage
 * ContactPage
 * FAQPage
 * LocalBusiness
 * BreadcrumbList
 * Organization
 * Custom

Posts:

 * Article
 * BlogPosting
 * NewsArticle
 * FAQPage
 * HowTo
 * BreadcrumbList
 * WebPage
 * Organization
 * Custom

Products:

 * Product
 * BreadcrumbList
 * FAQPage
 * WebPage
 * Organization
 * Custom

### Custom JSON-LD

Custom JSON-LD must be valid JSON.

Supported placeholders:

 * `{{title}}`
 * `{{url}}`
 * `{{description}}`
 * `{{image}}`
 * `{{author}}`
 * `{{datePublished}}`
 * `{{dateModified}}`

Example:

{
 “@context”: “https://schema.org”, “@type”: “WebPage”, “name”: {{title}}, “url”:{{
url}}, “description”: {{description}} }

Quoted full-value placeholders are also supported.

### Multiple Schemas

A single content item may contain multiple schemas, such as:

 * Product
 * BreadcrumbList
 * FAQPage

Enabled individual schemas are emitted together in a JSON-LD `@graph`.

### WooCommerce

When WooCommerce is active, Product schema can use:

 * Product name
 * Description
 * URL
 * SKU
 * Product image
 * Price
 * Currency
 * Stock availability
 * Brand
 * GTIN
 * MPN

### Security

MarkupLoom validates custom JSON before storing it and re-encodes schema data with`
wp_json_encode()` and JSON hexadecimal encoding flags before placing it inside a
JSON-LD script element.

Administrator-only configuration is protected by WordPress capability and nonce 
checks.

### Compatibility

 * WordPress 6.4 or later.
 * PHP 7.4 or later.
 * WooCommerce is optional.

## Installation

 1. Upload the `markuploom-json-ld` plugin folder to `/wp-content/plugins/`, or upload
    the ZIP through Plugins  Add New Plugin.
 2. Activate MarkupLoom.
 3. Edit a Page, Post, or WooCommerce Product to configure individual schemas.
 4. Use MarkupLoom in the WordPress admin menu for global schema rules.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“MarkupLoom – JSON-LD Manager” is open source software. The following people have
contributed to this plugin.

Contributors

 *   [ Saubhik M ](https://profiles.wordpress.org/saubhikm/)

[Translate “MarkupLoom – JSON-LD Manager” into your language.](https://translate.wordpress.org/projects/wp-plugins/markuploom-json-ld)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/markuploom-json-ld/),
check out the [SVN repository](https://plugins.svn.wordpress.org/markuploom-json-ld/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/markuploom-json-ld/)
by [RSS](https://plugins.trac.wordpress.org/log/markuploom-json-ld/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial MarkupLoom release.
 * Added global schema manager.
 * Added multiple individual schemas for Pages, Posts, and WooCommerce Products.
 * Added JSON-LD graph output.
 * Added WooCommerce Product schema support.
 * Added custom JSON-LD and placeholders.
 * Added secure JSON-LD output.
 * Replaced global schema Post Type multi-select with checkbox selection.

## Meta

 *  Version **1.0.0**
 *  Last updated **1 day ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 6.4 or higher **
 *  Tested up to **7.1.2**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [JSON-LD](https://wordpress.org/plugins/tags/json-ld/)[schema](https://wordpress.org/plugins/tags/schema/)
   [seo](https://wordpress.org/plugins/tags/seo/)[structured data](https://wordpress.org/plugins/tags/structured-data/)
   [woocommerce](https://wordpress.org/plugins/tags/woocommerce/)
 *  [Advanced View](https://wordpress.org/plugins/markuploom-json-ld/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/markuploom-json-ld/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/markuploom-json-ld/reviews/)

## Contributors

 *   [ Saubhik M ](https://profiles.wordpress.org/saubhikm/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/markuploom-json-ld/)