Free Vector Databases28/30
Chroma
An open-source embedding database and retrieval component for AI applications.
The open-source local mode is free; the cloud free tier is subject to the official plan page.
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Free Vector Databases
Official resources filtered for AI/API development workflows. Free conditions and limits are governed by each official source.
Free Vector Databases28/30
Qdrant
An open-source vector search engine offering filtering, similarity search and a cloud service.
Open source and free to self-host; the Qdrant Cloud free tier is subject to the official plan page.
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Weaviate
An open-source vector database supporting hybrid search and modular AI integrations.
Open source and free to self-host; the cloud free tier and resource limits must be checked against the official plan.
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Milvus
An open-source database and cloud service for large-scale vector search.
The open-source components are self-hostable; Zilliz Cloud plans must be checked separately.
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Pinecone
A managed vector database for RAG and semantic search applications.
An official Starter/free entry point is available; specific storage and read/write limits are subject to the current plan page.
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