# Self-hosted alternatives to Flat vector store

> 1 self-hostable, open-source alternative to Flat vector store, ranked by score.

- [rushdb](https://selfhost.directory/project/rushdb)

## Also in Vector Database

Not listed as Flat vector store alternatives, but from the same category:

- [chroma](https://selfhost.directory/project/chroma): Open-source vector database for AI retrieval: dense, sparse, full-text, regex and metadata search. Self-host it with pip, the chroma CLI, or Docker on port 8000.
- [qdrant](https://selfhost.directory/project/qdrant): Qdrant is an open-source, self-hosted vector database in Rust for fast AI similarity search with filtering and quantization.
- [weaviate](https://selfhost.directory/project/weaviate): Self-hosted open-source vector database that keeps objects and embeddings together, mixing semantic, BM25 and hybrid search with RAG, reranking, multi-tenancy and RBAC.
- [VectorChord](https://selfhost.directory/project/vectorchord): Self-hosted PostgreSQL extension for scalable vector search using RaBitQ quantization, compatible with pgvector syntax, enabling 100M+ vectors on modest hardware.

All 18 Vector Database projects: https://selfhost.directory/vector-database

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Source: https://selfhost.directory/alternative-to/flat-vector-store