Best Protégé Alternatives in 2026
Updated
20 tools from knowledge graph software ranked against Protégé on the same published basis.
- 1Protégé vs RDFox
- 2Protégé vs AllegroGraph
- 3Protégé vs GraphDB
- 4Protégé vs RDF Studio
- 5Protégé vs Stardog
- 6Protégé vs TypeDB
- 7Protégé vs Neo4j
- 9Protégé vs QLever
- 10Protégé vs Virtuoso Universal Server
- 11Protégé vs Apache Jena Fuseki
- 12Protégé vs Eclipse RDF4J
- 13Protégé vs HASH
- 14Protégé vs LinkedDataHub
- 15Protégé vs Progress Semaphore
- 16Protégé vs TerminusDB
- 17Protégé vs Timbr
- 18Protégé vs Mendix
- 19Protégé vs OWLGrEd
- 20Protégé vs Ontop
- 21Protégé vs PoolParty Semantic Suite
Protégé alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | RDFox | 7.9 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 2 | AllegroGraph | 7.5 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | GraphDB | 7.5 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 4 | RDF Studio | 7.5 | Free plan | Free | API, Linux, Mac, Web, Windows |
| 5 | Stardog | 7.4 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 6 | TypeDB | 7.4 | Free plan | $0.07/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 7 | Neo4j | 7.3 | Free plan | $65/mo | self-hosted |
| 9 | QLever | 7.3 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 10 | Virtuoso Universal Server | 7.3 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 11 | Apache Jena Fuseki | 7.1 | Free plan | Free | API, Linux, self-hosted, Web, Windows |
| 12 | Eclipse RDF4J | 7.1 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 13 | HASH | 7.1 | Free plan | $1.67/mo | API, Browser, self-hosted, Web |
| 14 | LinkedDataHub | 7.1 | Free plan | Free | API, Linux, self-hosted, Web |
| 15 | Progress Semaphore | 7.1 | No | — | API, Linux, self-hosted, Web, Windows |
| 16 | TerminusDB | 7.1 | Free plan | Free | API, Linux, self-hosted, Web |
| 17 | Timbr | 6.9 | No | — | API, Linux, self-hosted, Web |
| 18 | Mendix | 6.7 | Free plan | Free | — |
| 19 | OWLGrEd | 6.5 | Free plan | Free | Web, Windows |
| 20 | Ontop | 6.3 | No | — | Windows, Mac, Linux |
| 21 | PoolParty Semantic Suite | 6.1 | No | — | Web |
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Questions about Protégé alternatives
What is the best alternative to Protégé?
RDFox, number 1 in knowledge graph software with a score of 7.9 out of 10. The others here: AllegroGraph, GraphDB, RDF Studio and 16 more.
What is the best free alternative to Protégé?
RDFox is the best-ranked alternative with a free plan. 15 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.