What problem does it solve?
LlamaIndex removes the complexity of turning your private documents into a retrieval-augmented generation (RAG) system that can answer questions and support chat over knowledge you control.
Core Features & Use Cases
- Ingest data with connectors (300+ options): Load documents from local folders, web pages, GitHub, databases, and many third-party sources.
- Index your content for retrieval: Create vector, list, and tree indexes and persist them to avoid re-indexing.
- Query and agent workflows: Use query engines for response generation, retrievers for chunk selection, and RAG agents that decide when to search and when to use tools.
- Multimodal + evaluation hooks: Support multi-modal RAG patterns and evaluate response quality (e.g., relevance and faithfulness).
Quick Start
Tell your AI coding agent: "Use LlamaIndex to load documents from the 'data' folder, build a vector index, persist it to disk, and answer the question: 'What did the author do growing up?'"