Databases with Hierarchical Navigable Small World (HNSW) I...


	AionDB Multi-Model	2026	Vector, Graph, Relational	Hierarchical Navigable Small World (HNSW)	Multi-Model
	AnnDB Nearest Neighbor	2020	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor
	AwaDB Abandoned Nearest Neighbor	2023	Document / XML, Vector	Hierarchical Navigable Small World (HNSW)	Abandoned Nearest Neighbor
	Bleve Search Engine AI-Assisted	2014	Document / XML, Vector	Hierarchical Navigable Small World (HNSW), Inverted Index (Full Text)	Search Engine AI-Assisted
	CloseVector Nearest Neighbor	2023	Document / XML, Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor
	FerresDB Nearest Neighbor AI-Assisted	2026	Vector	Hierarchical Navigable Small World (HNSW), Inverted Index (Full Text)	Nearest Neighbor AI-Assisted
	Grafeo AI-Assisted	2026	Graph, Triplestore / RDF	Hierarchical Navigable Small World (HNSW)	AI-Assisted
	HexxlaDB AI-Assisted	2026	Array / Matrix, Vector	Hierarchical Navigable Small World (HNSW)	AI-Assisted
	Infinity Nearest Neighbor	2022	Relational	B+Tree, Hierarchical Navigable Small World (HNSW), Inverted Index (Full Text)	Nearest Neighbor
	KektorDB Nearest Neighbor	2025	Graph	Hierarchical Navigable Small World (HNSW), Inverted Index (Full Text)	Nearest Neighbor
	LintDB Abandoned Nearest Neighbor	2024	Vector	Hierarchical Navigable Small World (HNSW)	Abandoned Nearest Neighbor
	LogosDB AI-Assisted	2026	Vector	Hierarchical Navigable Small World (HNSW)	AI-Assisted
LO	LokiVector Nearest Neighbor NoSQL	2013	Document / XML, Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor NoSQL
	MenteDB AI-Assisted	2026	Vector, Graph	Hierarchical Navigable Small World (HNSW)	AI-Assisted
	Milvus Nearest Neighbor AI-Assisted	2019	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor AI-Assisted
MU	MuopDB Nearest Neighbor MMAP	2024	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor MMAP
	NarayanaDB OLAP AI-Assisted	2025	Relational	B+Tree, Hash Table, Hierarchical Navigable Small World (HNSW)	OLAP AI-Assisted
	OctaneDB Nearest Neighbor	2025	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor
	OpenSearch Forked Code Search Engine AI-Assisted	2021	Document / XML	Inverted Index (Full Text), Hierarchical Navigable Small World (HNSW)	Forked Code Search Engine AI-Assisted
	Satori Nearest Neighbor	2025	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor
	SeekDB AI-Assisted	2025	Relational, Vector	B+Tree, Hierarchical Navigable Small World (HNSW), Inverted Index (Full Text), R-Tree	AI-Assisted
	SochDB AI-Assisted	2026	Graph, Relational, Vector	Hierarchical Navigable Small World (HNSW)	AI-Assisted
	solidDB Acquired Company OLTP	1992	Relational	B+Tree, Hierarchical Navigable Small World (HNSW), Patricia/Radix Trie	Acquired Company OLTP
	SynapCores Multi-Model Nearest Neighbor	2026	Graph, Relational, Vector	Hierarchical Navigable Small World (HNSW)	Multi-Model Nearest Neighbor
	Vald Nearest Neighbor Search Engine AI-Assisted	2019	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor Search Engine AI-Assisted
VE	vecdb Nearest Neighbor Search Engine MMAP	2026	Document / XML, Vector	Hierarchical Navigable Small World (HNSW), Inverted Index (Full Text)	Nearest Neighbor Search Engine MMAP
	VectorDB Abandoned Nearest Neighbor	2023	Document / XML, Vector	Hierarchical Navigable Small World (HNSW)	Abandoned Nearest Neighbor
	VectorDB Abandoned Nearest Neighbor	2023	Document / XML, Vector	Hierarchical Navigable Small World (HNSW)	Abandoned Nearest Neighbor
	Weaviate Nearest Neighbor Search Engine MMAP AI-Assisted	2016	Vector	Hierarchical Navigable Small World (HNSW)	Nearest Neighbor Search Engine MMAP AI-Assisted
	YantrikDB AI-Assisted	2026	Graph, Key-Value, Vector	Hierarchical Navigable Small World (HNSW)	AI-Assisted