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Ontop

API—OSS—FREE—DOCS3/5

ON5.2#22 of 33

—WeboutWindowsoutMacoutLinux—Android—iOS

Ranked in Knowledge Graph Software ·No free plan on record

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About

Ontop is ranked #22 of 33 in knowledge graph software on Inferse. It runs on Windows, macOS, Linux.

Compared on knowledge graph software

Ontology modeling: Yesontop-vkg.org
Semantic reasoning: Yesontop-vkg.org
RDF/SPARQL support: Yesontop-vkg.org
Import formats: RDF/XML, Turtle, N-Triples, N-Quads, TriG, JSON-LD, R2RML, Ontop mapping formatontop-vkg.org
Deployment: bothontop-vkg.org
Query languages: SPARQLontop-vkg.org

Company

Headquarters: Bolzano, Italyontop-vkg.org · 28 Sept 2026

Best Ontop alternatives

AllegroGraph01 APIOSSFREEDOCS Free7.4 RDFox02 APIOSSFREEDOCS Free7.4 GraphDB03 APIOSSFREEDOCS Free7.3 LinkedDataHub04 APIOSSFREEDOCS Free7.3 RDF Studio05 APIOSSFREEDOCS Free7.3 Stardog06 APIOSSFREEDOCS Free7.3

Where it ranks on Inferse

Best Knowledge Graph Software in 2026#22 of 33
Best Query Engine Software in 2026#25 of 25
Best Data Virtualization Software in 2026#22 of 23

Sources

ontop-vkg.org· checked 28 Sept 2026