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Best Ontop Alternatives in 2026

12 apps from knowledge graph software ranked against Ontop on the same published basis.

  1. 1
    AllegroGraph Free plan apiLinuxMacself-hostedWeb Free6.4
    Ontop vs AllegroGraph
  2. 2
    GraphDB Free plan apiLinuxMacself-hostedWeb Free6.4
    Ontop vs GraphDB
  3. 3
    Neo4j Free plan self-hosted $65/mo6.4
    Ontop vs Neo4j
  4. 4
    RDFox Free plan apiLinuxMacself-hostedWeb Free6.4
    Ontop vs RDFox
  5. 5
    LinkedDataHub Free plan apiLinuxself-hostedWeb Free6.3
    Ontop vs LinkedDataHub
  6. 6
    Mendix Free plan Free6.3
    Ontop vs Mendix
  7. 7
    Protégé Free plan LinuxMacWebWin Free6.3
    Ontop vs Protégé
  8. 8
    RDF Studio Free plan apiLinuxMacWebWin Free6.3
    Ontop vs RDF Studio
  9. 9
    Stardog Free plan apiLinuxMacself-hostedWeb Free6.3
    Ontop vs Stardog
  10. 10
    TerminusDB Free plan apiLinuxself-hostedWeb Free6.3
    Ontop vs TerminusDB
  11. 11
    TypeDB Free plan apiLinuxMacself-hostedWeb $0.07/mo6.3
    Ontop vs TypeDB
  12. 12
    Apache Jena Fuseki Free plan apiLinuxself-hostedWebWin Free6.2
    Ontop vs Apache Jena Fuseki
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