Ontopop | Visualise, explore and query ontologies.

OntoSpark is a free and 100% client-side browser-based app that enables users to visualise, explore and semantically query ontologies. Our aim is for OntoSpark to become an industry-standard tool for the end-to-end management & utilisation of ontologies, from iterative design & development (via an interactive visual ontology builder) through to visualisation, exploration and API-driven semantic reasoning and inference.