pgvector
by pgvector OSS · open-source · Last verified 2026-04-24
pgvector is a PostgreSQL extension that adds vector similarity search capabilities to an existing Postgres database. It supports exact and approximate nearest-neighbor search via HNSW and IVFFlat indexes, enabling teams to add semantic search to their existing Postgres infrastructure without a separate vector database deployment.
https://github.com/pgvector/pgvector ↗C
C—Below Average
Adoption: C+Quality: B+Freshness: ACitations: CEngagement: F
Specifications
- License
- Open Source
- Pricing
- open-source
- Capabilities
- Integrations
- Use Cases
- API Available
- No
- SDK Languages
- sql, python, ruby, java
- Deployment
- self-hosted, supabase, aws-rds, azure
- Rate Limits
- N/A (database extension, depends on host)
- Data Privacy
- Self-hosted, user-managed; inherits PostgreSQL security
- Tags
- vector-db, postgresql, open-source, hnsw, embedded, sql
- Added
- 2026-04-24
- Completeness
- 60%
Index Score
44Adoption
50
Quality
70
Freshness
80
Citations
40
Engagement
0