An ontology editor focused on providing a seamless experience for users working with OWL ontologies. It supports the editing of structured ontologies and offers various validation and reasoning tools.
Wikisource reader app is a free e-book reader for Android users which fetches readily available books from the free and open digital library of Wikisource.
Wikisource
Built on standards like RDF, OWL, SPARQL, LDP, ActivityPub and SOLID, the SemApps framework is meant to develop applications that are part of the Linked Open Data and the Semantic Web.
Very fast SPARQL Engine, which can handle very large knowledge graphs, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search.
SPARQL and Gremlin compatible graph database that supports 50 million+ triples and powers Wikidata and Wikibase
Apache Jena Fuseki is a SPARQL server. It can run as a operating system service, as a Java web application (WAR file), and as a standalone server.
The goal is to provide a compliant, safe, and fast graph database based on the RocksDB key-value store. It is written in Rust. It also provides a set of utility functions for reading, writing, and processing RDF files.
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