Best Open Source Vector Databases Tools

Open source vector databases tools, ranked by score and analyzed honestly. Part of our AI & Machine Learning coverage.

Ranked by score. Updated weekly.

1

Milvus

83

Cloud-native vector database for scalable ANN search

44,299 ★Gopermissive
2

Qdrant

83

High-performance vector database and search engine

31,301 ★Rustpermissive
3

Chroma

83

Data infrastructure for AI

27,958 ★Rustpermissive
4

Weaviate

83

Open-source vector database

16,177 ★Gopermissive

Explore More Categories

Best AI Agent FrameworksBest Open Source Agent FrameworksBest Open Source Claude Code & Codex SkillsBest Open Source Agent Runtimes & SandboxesBest Open Source Multi-Agent SystemsBest Python Developer ToolsBest LLM Inference ToolsBest DevOps & Infrastructure ToolsBest CLI ToolsBest Open Source MCP Servers
🤖

AI & Machine Learning

🌐

Web & Frontend

⚙️

Infrastructure & DevOps

🗄️

Data & Storage

🔧

Developer Tools

🔒

Security & Auth

📊

Observability

🏠

Self-Hosted & Apps