SemSpect is a tool that enables users to visualize and interactively query large graphs to gain meaningful insights, particularly in Neo4j property graph data. It groups nodes by their label and aggregates relationships between groups unless the user asks for details, making it easier to explore complex queries without learning Cypher syntax. The tool provides a Web UI based on HTML5/JavaScript with a Java backend that incorporates GraphScale technology, allowing it to draw on full RDFS and OWL 2 RL reasoning capabilities. SemSpect is now available as a Neo4j Graph App for one-click installation and instant use within Neo4j Desktop, providing an effective solution for business-critical graphs with data-driven exploration and visualization.