Crossref Search is a free Chrome add-on developed by David Shorthouse. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory. This unofficial tool adds a convenient right-click (command-click for Mac) context menu option for users to search for highlighted bibliographic references.

With Crossref Search, users can easily find single citations by simply highlighting the reference and selecting the search option from the context menu. Once selected, the add-on opens a new browser tab with the search results from Crossref's search service. This service utilizes Crossref's extensive database to provide accurate and relevant results for the highlighted reference.

This add-on is a handy tool for researchers, students, and anyone who frequently deals with bibliographic references. It streamlines the process of finding relevant information and saves users valuable time. Crossref Search is a reliable and efficient tool for anyone in need of quick and accurate citation searches.