The Neo4j LLM Knowledge Graph Builder is a system that transforms unstructured text into structured knowledge, enabling seamless searchability, queryability, and contextual understanding. It leverages the power of Large Language Models (LLMs) to automate the extraction process, eliminating the need for manual data structuring and reducing the dependency on handcrafted rules and patterns. The system's pipeline consists of five steps: data ingestion, chunking, embedding generation, entity extraction, and post-processing, which are designed to be flexible, scalable, and adaptable to various domains. By utilizing Neo4j's graph database capabilities, the builder streamlines large-scale knowledge extraction, making it faster and more efficient. The system also enables features like configurable chunking, embedding-based similarity searches, schema consolidation, community detection, and entity embeddings, ensuring accuracy, flexibility, and adaptability for real-world applications.