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Local-first hybrid vector database. HNSW + BM25 + fusion search. Single binary, no cloud.
9 starsRust
Vecdb – local-first hybrid vector database in Rust (HNSW and BM25)
by zaydmulani·May 18, 2026·4 points·0 comments
AI Analysis
●●●BangerBig BrainZero to One
Single-binary Rust DB fusing HNSW and BM25 without cloud dependencies or API keys.
Strengths
- •Custom inverted index implements BM25 scoring without external search dependencies.
- •Cost-based query planner automatically selects between HNSW and IVF backends.
- •SQL-like syntax supports filter pushdown on nested JSON paths with column projection.
Weaknesses
- •No distributed clustering or replication strategy mentioned for horizontal scaling.
- •Lacks managed service option for teams unwilling to self-host infrastructure.
Category
Target Audience
Backend engineers building local-first RAG applications
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