RDF platforms

Mature stores for linked facts, standard queries, and inference.

Legra wrote this comparison. Checked 26 September 2026.

Legra combines standard queries with encrypted workspaces and branches for governed changes.

Products

Scored from each vendor's public docs
	End-to-end encryption	Branching	Reasoning	Validation	Peer-to-peer
Legra	Authorized query hosts decrypt
Stardog
GraphDB
Amazon Neptune
AllegroGraph
RDFox
Virtuoso			Documented RDFS/OWL subset

Yes Unknown

Select a score for its evidence.

Selected strength Not assessed