Web of Science Preprint Citation Index

The Preprint Citation Index is a new product from Clarivate on the Web of Science platform. It currently indexes preprints from five different preprint repositories: arXiv, bioRxiv, ChemRxiv, medRxiv, and Preprints.org. This review describes the content discoverable in this product and the interface in terms of what is depicted in the records as well as search functionality and accessibility. The product is critically evaluated and compared with related products featuring preprints such as Europe PubMed Central.