apache/jena

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1417 stars · 704 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Apache Jena is a free and open-source Java framework for building Semantic Web and Linked Data applications. It provides an RDF API, a SPARQL 1.1 query engine (ARQ), a persistent triple store (TDB), a SPARQL server (Fuseki), and OWL/RDFS inference and ontology support.

Use cases

• query RDF data with SPARQL
• store and persist RDF triples in a native triple store
• expose RDF data as a SPARQL endpoint over HTTP
• parse and serialize RDF in Turtle, JSON-LD, RDF/XML and other formats
• run OWL and RDFS reasoning over RDF graphs
• build linked data and semantic web applications in Java
• validate RDF data with SHACL
• run federated SPARQL queries across remote endpoints

When to choose

• you need a mature, standards-compliant RDF/SPARQL toolkit on the JVM
• you want a self-contained SPARQL server with transactional persistent storage
• you need OWL/RDFS inference or SHACL validation for RDF data
• you work with linked data formats like Turtle, JSON-LD, or RDF/XML

When to avoid

• your data is relational and does not fit the RDF graph model
• you need a lightweight embedded graph database without RDF/SPARQL semantics
• your stack is not JVM-based and you only need simple JSON or SQL storage

Facets

framework · maturity stable

database search-engine serialization http-server cli parser api-framework databases web-development developer-tools apis jvm cross-platform cli rdf sparql semantic-web linked-data triple-store owl fuseki tdb knowledge-graph apache search web-server docker

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