The Best Open-Source Vector Database in 2026: Qdrant vs Weaviate vs Milvus vs pgvector vs Chroma
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Originally published on dreaming.press . Which open-source vector database should you use in 2026? If you already run Postgres, start with pgvector — it adds vector search to a database you already operate, no new service. If you want a clean, dedicated engine, pick Qdrant . Reach for Weaviate for…
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- 2026-08-26 11:57 · DEV Community — AI
The Best Open-Source Vector Database in 2026: Qdrant vs Weaviate vs Milvus vs pgvector vs Chroma