NodeDB vs Ontop

NodeDB is a multiple database; Ontop is a rdf database. NodeDB (2026-04, BUSL-1.1, Rust) ranks #102 this month; Ontop (2009, Apache-2.0, Java) ranks #18.

Attribute	NodeDB #102 ▼1 Growing	Ontop #18 ▼1 Strong
At a glance
Rank	#102	#18
Score	36.3	59.0
GitHub stars	197	945
Popularity	41.9	69.9
Activity	53.7	50.8
Community	56.2	74.0
Research	49.6	53.4
Fundamentals
Description	A multi-model database written in Rust that runs document, key-value, columnar, timeseries, spatial, vector, and array engines in a single binary over shared storage, with graph and full-text search as cross-engine overlays on any collection. Its graph overlay uses a CSR adjacency index with 13 built-in algorithms and a Cypher-subset MATCH syntax, and fuses graph traversal with vector search in a single query for GraphRAG. Speaks SQL over a native MessagePack protocol and the PostgreSQL wire protocol, alongside HTTP/REST, WebSocket, RESP, and ILP.	A Virtual Knowledge Graph system that exposes relational databases as RDF knowledge graphs, translating SPARQL queries into SQL without moving data. Uses R2RML mappings and lightweight ontologies.
Vendor	NodeDB-Lab	Ontopic
Model	Multiple	RDF
Kind	database	query-engine
Category	Emerging	Established
First released	2026-04	2009
Status	active	active
License	BUSL-1.1	Apache-2.0
Written in	Rust	Java
Query languages	SQL, openCypher	SPARQL
gdotv support	no	no