Neptune vs NodeDB

Both are multiple databases queried with openCypher. Neptune (2017-11, Proprietary, C++) ranks #4 this month; NodeDB (2026-04, BUSL-1.1, Rust) ranks #102. They differ on 21 of 46 surveyed features.

Attribute	Neptune #4 ▼3 Leader	NodeDB #102 ▼1 Growing
At a glance
Rank	#4	#102
Score	65.5	36.3
GitHub stars	—	196
Popularity	81.2	41.9
Activity	95.5	53.7
Community	53.7	56.2
Research	58.4	49.6
Fundamentals
Description	A fully managed graph database service from AWS supporting both property graph and RDF models. Available as Neptune Database (for transactional workloads) and Neptune Analytics (for analytical queries).	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.
Vendor	Amazon Web Services	NodeDB-Lab
Model	Multiple	Multiple
Kind	database	database
Category	Enterprise	Emerging
First released	2017-11	2026-04
Status	active	active
License	Proprietary	BUSL-1.1
Written in	C++	Rust
Query languages	Gremlin, SPARQL, openCypher	SQL, openCypher
gdotv support	yes	no