JS Morisset

Is Google Search reporting invalid Schema markup from your theme templates?
Do you need to remove old Microdata and RDFa markup from your theme templates?
Do you need to remove duplicate social or SEO meta tags from your webpage?

By default, the WPSSO Strip Schema Microdata (WPSSO SSM) add-on can remove old Schema Microdata and RDFa markup from the webpage. The settings page also allows for the optional removal of duplicate / conflicting Schema markup and meta tags from the webpage head or body sections.
WPSSO SSM filters the webpage dynamically, allowing you to activate or deactivate the add-on to enable or disable the removal of old Schema Microdata, RDFa, and duplicate meta tags. The WPSSO SSM webpage filter is very fast – generally running in under 0.003 seconds.

<h3>WPSSO Core Required</h3>
WPSSO Strip Schema Microdata is an add-on for the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a>, which creates extensive and complete structured data to present your content at its best for social sites and search results – no matter how URLs are shared, reshared, messaged, posted, embedded, or crawled.

WPSSO Strip Schema Microdata

Remove Schema Microdata and RDFa from the webpage for better Google Rich Results using Schema JSON-LD markup.

Ali Khalili

RDFa Content Editor (RDFaCE) is a plugin for TinyMCE rich text editor. 
RDFaCE is an implementation for WYSIWYM (What You See Is What You Mean) concept. 
It enables end-users to easily annotate their blog posts using RDFa and Microdata markups. 
This special edition focuses on Schema.org schemas for improving SEO (Search Engine Optimization). 
For more info visit RDFaCE project page at http://rdface.aksw.org/ or watch the WYSIWYM concept video at http://youtu.be/wxtlAol4HB0

RDFaCE

Enables semantic content authoring based on RDFa and Microdata (Schema.org).

WPSSO Strip Schema Microdata vs RDFaCE