What is Data Highlighter in Webmaster tools?

What is Data Highlighter in Webmaster tools?

Data highlighter is the tool in Google Webmaster to tell the google about the structured data on your website. It is used to tag the data fields in your website.

It help to highlight the text in Meta Description so that Google pick only that text for rankings.

Data Highlighter is a webmaster tool for teaching Google about the pattern of structured data on your website. You simply use Data Highlighter to tag the datafields on your site with a mouse. That means reviews, product data, and even events can be quickly highlighted for your eCommerce (or any) website.