Free Self-host vector DB for AI agents

Run it free (7)

• Chroma · dev_tool · oss · Apache-2.0

  Self-hosted or embedded vector database.

  Limits: none stored.

  Source · asOf 2026-10-25 · Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): GitHub blob page HTTP 200, no redirect (page chrome differs between fetches); raw LICENSE fetched twice too, HTTP 200, byte-identical: 'Apache License Version 2.0, January 2004'. License unchanged.

• Qdrant · dev_tool · oss · Apache-2.0

  Self-hosted vector database. Qdrant Cloud is not this row.

  Limits: none stored.

  Source · asOf 2026-10-25 · LICENSE refetched 2026-10-03 is Apache License 2.0. README fetched the same day says hybrid search combines semantic understanding and keyword precision, and that sparse vectors are for full-text search. It does not say BM25. It does not say enterprise RAG with rerank and support, agent memory across sessions, or a knowledge graph. Qdrant Cloud is not this row. Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): GitHub blob page HTTP 200, no redirect (page chrome differs between fetches); raw LICENSE fetched twice too, HTTP 200, byte-identical: 'Apache License Version 2.0, January 2004' / 'Copyright 2026 Qdrant Solutions GmbH'. License unchanged.

• LanceDB · dev_tool · oss · Apache-2.0

  Embedded vector database library.

  Limits: none stored.

  Source · asOf 2026-10-25 · Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): GitHub blob page HTTP 200, no redirect (page chrome differs between fetches); raw LICENSE fetched twice too, HTTP 200, byte-identical: 'Apache License Version 2.0, January 2004'. License unchanged.

• pgvector · dev_tool · oss · PostgreSQL License

  Postgres extension for vector similarity. Not Supabase hosted Postgres.

  Limits: none stored.

  Source · asOf 2026-10-25 · providerId is null on purpose. supabase-pgvector is a hosted product and is not this extension. Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): GitHub blob page HTTP 200, no redirect (page chrome differs between fetches); raw LICENSE fetched twice too, HTTP 200, byte-identical: 'Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group' / 'without fee, and without a written agreement is hereby granted'. License unchanged.

• FAISS · free_vector · oss · MIT

  Open-source library for vector similarity search.

  Limits: none stored.

  Source · asOf 2026-10-25 · LICENSE fetched 2026-10-03 is MIT, copyright Facebook, Inc. and its affiliates. Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): HTTP 200, no redirect, byte-identical: 'MIT License' / 'Copyright (c) Facebook, Inc. and its affiliates.'. License unchanged.

• Milvus · free_vector · oss · Apache-2.0

  Open-source vector database you self-host.

  Limits: none stored.

  Source · asOf 2026-10-25 · LICENSE fetched 2026-10-03 is Apache License 2.0. Hosted Zilliz Cloud is not this row. Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): HTTP 200, no redirect, byte-identical: 'Apache License Version 2.0, January 2004'. License unchanged.

• sqlite-vec · free_vector · oss · MIT

  Open-source SQLite extension for vector search.

  Limits: none stored.

  Source · asOf 2026-10-25 · LICENSE-MIT fetched 2026-10-03 is MIT, copyright 2024 Alex Garcia. A path named LICENSE.md was 404. Re-fetched twice 2026-10-25 (~10 s apart, plain curl, no login): HTTP 200, no redirect, byte-identical: 'MIT License' / 'Copyright (c) 2024 Alex Garcia'. License unchanged.

Reference (docs, public datasets and benchmarks) (0)

None.