LangChain-ChromaDB

wojciech achtelik
Wojciech Achtelik
AI Engineer Lead
June 25, 2025

LangChain ChromaDB refers to the integration between LangChain framework and ChromaDB vector database for building retrieval-augmented generation (RAG) applications. ChromaDB is an AI-native open-source vector database focused on developer productivity that stores document embeddings and enables semantic search capabilities. The LangChain-ChromaDB integration allows developers to create sophisticated AI applications that can retrieve relevant context from large document collections, perform similarity searches, and maintain persistent vector storage. This combination enables efficient document indexing, contextual question-answering systems, and knowledge base implementations where LLMs can access external information through vector similarity matching rather than relying solely on training data.