Best Knowledge Graph Software in 2026 · page 2
- 26
OWLGrEd
OWLGrEd is a free ontology-modeling application available on the web and Windows.
Free planWebWindows5.5Free plan - 27
d.AP
d.AP is an AI context platform for enterprises connecting business knowledge across systems for agents, applications, and BI tools.
API5.4 - 28
Ontotext Platform
WebAPILinuxSelf-hosted5.4 - 29
InfoLibrarian Knowledge Graph Engine
APISelf-hosted5.2 - 304.6
- 31
ROBOKOP
Web4.6 - 32
Wikibase
Web4.6 - 33
Fluent Editor
Windows4.5