Best Knowledge Graph Software in 2026
Updated
33 knowledge graph software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
33ranked
1free plans on this page
4 Oct 2026last checked
Knowledge Graph Software, ranked on how quickly a newcomer can get going. 1 of the 8 on this page can be tried for free.
- 26 Synaptica
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 27 Wikibase
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 28 InfoLibrarian Knowledge Graph Engine
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 29 metaphactory
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 30 Oxigraph
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 31 ROBOKOP
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 32 eccenca Corporate Memory
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 33 QLeverFree plan
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
Compare all 8 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Ontology modeling | Semantic reasoning |
|---|---|---|---|---|---|---|---|---|
| 26 | Synaptica | 5.8 | No | — | — | — | Yes | Yes |
| 27 | Wikibase | 5.8 | No | — | Yes | — | Yes | — |
| 28 | InfoLibrarian Knowledge Graph Engine | 5.7 | No | — | — | — | Yes | Yes |
| 29 | metaphactory | 5.7 | No | — | No | — | Yes | Yes |
| 30 | Oxigraph | 5.7 | No | — | — | — | — | — |
| 31 | ROBOKOP | 5.7 | No | — | — | — | No | Yes |
| 32 | eccenca Corporate Memory | 5.6 | No | — | — | — | — | — |
| 33 | QLever | 5.6 | Free plan | Free | — | — | — | — |
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