LightRAG

LightRAG is a simple, fast, and powerful RAG system that goes beyond chunk retrieval by automatically building a knowledge graph from your documents — then querying both the graph and vector store simultaneously for richer, more contextually aware answers. Published at EMNLP 2025 and trusted by 29k+ developers, it works with any LLM, supports production-grade storage backends, and ships with a Web UI featuring live knowledge graph visualization.