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Vec1

sqlite.orgInfrastructure

No liveness check has reached it yet; it has been in the index since 10 Oct 2026. How this is checked

Vec1 is a portable C extension that adds approximate nearest-neighbor vector search to SQLite through its virtual table interface. It supports Euclidean and cosine distance, with IVFADC and OPQ algorithms plus SIMD optimizations for supported platforms.

Inferred · not functionally tested

Open SourceWebSelf-hostedCLI
Vec1 preview
Visit sqlite.org

Overview

6 features

Purpose: Adding approximate nearest-neighbor vector search to SQLite databases.

Inferred · not functionally tested

Audience: developers building applications with SQLite and vector search

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: Open Source · platforms: WEB · deployment: browser, self_hosted, cli

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: sqlite.org. These links do not verify the individual claims.

In the Databases (SQL, NoSQL, vector, graph) space, Vec1 takes a focused approach. Inferred · not functionally tested: It focuses on adding approximate nearest-neighbor vector search to SQLite databases. Inferred · not functionally tested: It is built as an open-source project for developers building applications with SQLite and vector search. Basis unknown · not verified: Vec1 is open source under the Open Source license. Basis unknown · not verified: It ships for the web and the command line, and it can be self-hosted.

SQLite Project builds and maintains Vec1. Inferred · not functionally tested: Among its 6 catalogued features are vector search, approximate nearest neighbors, and cosine distance.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Vector search
  • Approximate nearest neighbors
  • Cosine distance
  • Euclidean distance
  • Virtual tables
  • IVFADC indexing

Topics: Inferred · not functionally tested

Tags
sqlite-extensionvector-searchapproximate-nearest-neighborivfadcproduct-quantization

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserSelf-hostedCLI

Trust & compliance

License
Open Source
Public signals
HTTPSOpen SourceFree tier

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed10 Oct · 06:09 UTC
    Vec1: Native vector search (ANN) in SQLite seen via Hacker News firehose (Algolia)
    Source: Hacker News firehose (Algolia) · Open

Frequently asked questions about Vec1

What does Vec1 do?
Inferred · not functionally tested: Vec1 focuses on adding approximate nearest-neighbor vector search to SQLite databases. It is catalogued under Databases (SQL, NoSQL, vector, graph) on PulseGate.
Who is Vec1 for?
Inferred · not functionally tested: Vec1 is an open-source project built for developers building applications with SQLite and vector search.
Does Vec1 have a free plan?
Basis unknown · not verified: Yes — Vec1 is open source under the Open Source license and free to use.
What platforms does Vec1 run on?
Basis unknown · not verified: Vec1 runs on the web and the command line. It can also be self-hosted.
Is Vec1 still active?
Unverified. Vec1 has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Vec1?
Similar projects tracked by PulseGate include OnDemand DB, Volixta Database Manager, and ny-authority-debt.OnDemand DBVolixta Database Managerny-authority-debt
Who makes Vec1?
Vec1 is developed by SQLite Project.
Is Vec1 open source?
Basis unknown · not verified: Yes — Vec1 is open source under the Open Source license.

Also in Databases (SQL, NoSQL, vector, graph)

Same category — not a similarity match