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pgvector

Open-source vector similarity search for Postgres

View on GitHub Official site
Vector Databases Medium setup 22,303 stars

Overview

Description

Add high-performance vector similarity search directly inside PostgreSQL — no separate database, no new infrastructure. Your team keeps using the same SQL tools, ACID guarantees, and operational practices they already know. Scale from prototypes to production with replication, point-in-time recovery, and the full Postgres ecosystem.

Technical scorecard

License

Not specified

Commercial use

No

OpenAI-compatible API

No

REST API

No

Fine-tuning support

No

Quantization support

No

Docker available

Yes

GUI / no-code available

No

Telemetry

Unknown

Offline after setup

Yes

Data & Privacy

Does it send data online?

After setup, this listing is marked as usable offline. Confirm network behavior against the upstream project before regulated deployment.

Does it store history?

Not verified in this directory yet. Review the upstream docs for persistence, logs, and workspace storage.

License checks?

The listed license needs review before commercial use.

Telemetry?

Unknown

Last verified: Jul 22, 2026. Maintainer verification should be treated as directory guidance, not legal advice.

🛡️

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Setup & Installation

Medium

A developer can usually get this running with standard docs.

# Start with the official project repository
# https://github.com/pgvector/pgvector

Hardware Requirements

Hardware tagsCPU
LanguagesC, Perl

Works Well With