Registry › Compare › LanceDB vs Weaviate

LanceDB vs Weaviate

Both are Grade B and 2.3 points apart, so choose on what you weigh most. LanceDB leads on supply-chain integrity; Weaviate leads on transparency and adoption.

B LanceDB 72.2

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

lancedb/lancedb · #283 overall · #18 Memory & Knowledge · coverage A (4/5)

Choose LanceDB if supply-chain integrity matters most.

+0.5Safety / Integrity: 79% of recent commits signed, against 45%

B Weaviate 74.5

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.

weaviate/weaviate · #233 overall · #13 Memory & Knowledge · coverage A (4/5)

Choose Weaviate if transparency and adoption matter most.

+0.8Transparency: OSSF Scorecard 7.0 against 6.0
+0.6Adoption: 2.6M weekly downloads against 1.8M

Where they differ

11.5

Safety / IntegrityLanceDB +0.5

11.0

13.6

TransparencyWeaviate +0.8

14.4

20.0

MaintenanceLanceDB +0.1

19.9

18.1

AdoptionWeaviate +0.6

18.7

-1.8

Runtime calibrationWeaviate +1.5

-0.3

1 dimension identical: Identity 10.8 · Full evidence table

An independent, evidence-based trust comparison of LanceDB and Weaviate, two Memory & Knowledge projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.

Full evidence

Signal	LanceDBlancedb/lancedb	Weaviateweaviate/weaviate
HVTrust score	72.2	74.5
Evidence grade	B	B
Coverage grade	A	A
Overall rank	#283	#233
Rank in Memory & Knowledge	#18	#13
GitHub stars	11.5k	16.8k
Last updated	today	1d ago
Build provenance	No	No
OSSF Scorecard	6.0 / 10	7.0 / 10
License	Apache-2.0	NOASSERTION
Downloads	1.8M/wk	2.6M/wk
Trust dimensions (points earned)
Safety / integrity / 25	11.5	11.0
Identity & provenance / 18	10.8	10.8
Transparency / 17	13.6	14.4
Maintenance / 20	20.0	19.9
Adoption / 20	18.1	18.7
Runtime capability surface (full matrix)
MCP server	—	Declared
External providers	4 — Amazon Bedrock, Cohere, Google Gemini, …	1 — Weaviate
Requires API keys	No	No
Plugin surface	plugins	—
Provenance drift	Unknown	Unknown

Open in the live compare tool → LanceDB profile Weaviate profile More Memory & Knowledge →

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.3 →