llm-graph-builder is an application that utilizes large language models (like OpenAI, Gemini, etc.) to extract nodes, relationships, and their attributes from unstructured data (PDFs, DOCS, TXTs, YouTube videos, webpages, etc.) and uses the Langchain framework to create structured knowledge graphs. It supports uploading files from local machines, GCS or S3 buckets, or network resources, selecting an LLM model, and generating knowledge graphs.