digrart

This plugin generates breadcrumb navigation for all posts, pages, custom post types, categories, and taxonomies on WordPress. The breadcrumbs are fully customizable and support structured data formats such as Microdata and JSON-LD for better SEO.

dig Breadcrumb

Generate breadcrumb navigation for all posts, pages, custom post types, categories, and taxonomies on WordPress, considering their publication status.

tobias_.MerZ

RichSnippets can have very positive impact on the Click-Through-Rate of your Website on Google or any searchengine. With this plugin it is possible to generate a breadcrumb navigation with the microdata format from schema.org. This navigation will be shown on your webpage and the snippets on the search engine result pages. 
Until the next release this Plugin works mainly with Themes that have a menu navigation at the top of the page like Zerif Lite.

Breadcrumb Navigation for SEO with Microdata

With this Plugin you can generate a breadcrumb navigation with Microdata format from schema.org. The breadcrumbs will be shown in Google snippets.

dig Breadcrumb vs Breadcrumb Navigation for SEO with Microdata