Jose Vega

wpsheeteditor

Automatically add the rich snippets schema to display review stars on Google searches for WooCommerce Products.
It’s very simple.
When the product has reviews left by customers, it will automatically add this schema code:
<pre><code>{
 "@context": "http://schema.org",
 "@id": "#product",
 "@type": "IndividualProduct",
 "aggregateRating": {
 "@type": "AggregateRating",
 "ratingCount": "$rating_count",
 "ratingValue": "$average_rating"
 },
 "name": "$product_title",
 "category": "$category"
}
</code></pre>
… which makes Google display the review stars on the search pages.
No setup needed. Everything is automatic. Just activate the plugin. 
This plugin is super lightweight and it’s completely free.

WooCommerce Product Review Schema – Automatic, no Setup Needed

Automatically add the rich snippets schema to display review stars on Google searches for WooCommerce Products.

Hesham Zebida

Schema.Press

Like Schema Review plugin? Consider leaving a <a href="https://wordpress.org/support/plugin/schema-review/reviews/" rel="ugc">5 star review</a>.
Schema Review is an extension for the Schema plugin, it extend Schema functionality by adding schema.org review and rating Structured Data functionality for Editors and Authors.
The Schema Review extension includes support for <a href="https://developers.google.com/search/docs/data-types/reviews#review-snippet-examples" rel="nofollow ugc">Embedded Review</a>, which meant to work for Authors and Editorial reviews, editors can review about anything.
This extension require <a href="https://wordpress.org/plugins/schema/" rel="ugc">Schema plugin</a> to be installed and activated on your site.
Schema Review Key Features
<ul>
<li>Easy to use, minimal settings.</li>
<li>Minimal output via shortcode, light-weight no CSS or Scripts loaded in front-end.</li>
<li>Enable Schema Review for Editor or Author.</li>
<li>Provide a valid markup, test it in Google Structured Data Testing Tool.</li>
<li>Extend Schema output in JSON-LD format, the most recommended by Google.</li>
<li>If your site is qualified, Google may display Rich Snippets including rating stars in search results.</li>
</ul>
Check out the <a href="https://schema.press/" rel="nofollow ugc">Plugin Homepage</a> for more info and <a href="https://schema.press/docs/" rel="nofollow ugc">documentation</a>.
Schema Reviews Premium
Looking for more? Check out <a href="https://schema.press/downloads/schema-reviews/" rel="nofollow ugc">Schema Reviews</a> Premium Extension, a fully <a href="https://demo.schema.reviews/nested-review/" rel="nofollow ugc">user reviews</a> functionality.

Schema Review

Add schema.org review markup and Structured Data in JSON-LD format for editor reviews, an extension for the Schema plugin.

WooCommerce Product Review Schema – Automatic, no Setup Needed vs Schema Review