S4B

Chroma is an open-source embedding database (vector store) designed for AI applications. It stores and queries embeddings for retrieval-augmented generation (RAG) and semantic search.

• Simple Python/JavaScript API
• In-memory and persistent storage modes
• Automatic embedding generation (integrates with OpenAI, Cohere)
• Metadata filtering on stored documents

Used by developers building RAG chatbots, semantic search engines, and document Q&A systems. Popular starter vector database due to simplicity.

Free and open-source (Apache 2.0). Chroma Cloud for managed hosting (coming soon).

Visit Chroma official website →