Qdrant

Open-source Rust-based vector DB.

What is Qdrant?

Open-source vector database written in Rust. Fast, dense filtering, and easy to self-host.

Key Features

Rust core — fastest open-source vector DB
Filtered search with payload predicates (no two-step queries)
Quantisation (binary, scalar) for 32× memory savings
Distributed mode + sharding
Self-host with Docker, or Qdrant Cloud
Clients in Python, JS, Rust, Go, Java

FAQ

Qdrant vs the rest? +

Best raw performance for self-hosted, especially with quantisation enabled. Most pleasant developer experience for filtered search. Picks up the lead at very high QPS or very large index sizes (>50M vectors).

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