Graph Explorer is a proof of concept for loading Sinopia RDF in a browser-based environment by selecting groups or individual resources. Once loaded, a user can query the returned RDF using SPARQL and download the results as csv. In this presentation, we will discuss Graph Explorer’s design and development, and demonstrate how to query Sinopia using the Graph Explorer and SPARQL. We also welcome feedback from the LD4 community on desired enhancements and potential uses. Sinopia is an open source linked data cataloging tool developed by the LD4P initiative. Graph Explorer offers Sinopia users and the Sinopia curious a new way to query Sinopia data, practice SPARQL skills, and examine data created in Sinopia. This session will be presented by Jeremy Nelson, Library Systems Software Developer, and Kalli Mathios, Linked Data Community Outreach Librarian, Stanford Libraries.