Tim van Iersel

Remove Schema optionally removes all schema markup from your website. <a href="http://coderisk.com/wp/plugin/remove-schema/RIPS--IjmGY49ry" rel="nofollow ugc"></a>
You have the option to remove:
<ul>
<li>All JSON-ld</li>
<li>All Microdata</li>
<li>All RDFa</li>
</ul>
And remove plugin/theme specific markup:
<ul>
<li>WooCommerce</li>
<li>WooCommerce emails</li>
<li>Yoast SEO</li>
<li>Schema Pro</li>
<li>GeneratePress themes</li>
</ul>

Remove Schema

Works great! I wanted to add my own schema, but the theme I am using was adding a bunch more, some of it in error. Remove Schema got rid of all that junk and everything's good now! 

Excellent - Removed Problematic Schema

Remove all Schema Markup / Structured data (Microdata, RDFa and/or JSON-ld) that you don’t want on your site.

Adds custom field to the post & pages editor for custom JSON-ld schema markup also known as structured data. The plugin also validates if the JSON is formated correctly. <a href="http://coderisk.com/wp/plugin/websitescanner-custom-schema/RIPS-8iSfZmxGFd" rel="nofollow ugc"></a>
Add your own JSON-ld on every page, post and custom post without the <code><script></code> to show your own custom Schema markup.
Works well with the following plugins:
<ul>
<li><a href="https://wordpress.org/plugins/remove-schema/" title="Remove Schema WordPress plugin" rel="ugc">Remove Schema</a></li>
</ul>
Usecases:
With the combination of the WordPress plugin it’s easy to overwrite the schema on a specific page. 
If a plugin like Yoast SEO or other plugin or theme that generates schema you can disable the schema and add your own custom schema to the page.

Websitescanner Custom Schema

Adds custom field to the post & pages editor for custom JSON-ld schema markup also known as structured data.

Remove Schema vs Websitescanner Custom Schema