GoldenMatch

GoldenMatch is an open-source, zero-configuration entity resolution and deduplication tool designed for researchers, developers, and data engineers dealing with messy, large-scale datasets. It can match and deduplicate records with high accuracy (fuzzy, exact, probabilistic, and LLM approaches) without requiring training data or tuning and works across Python, TypeScript, and SQL environments. Suitable for everything from desktop CSVs to knowledge graph pipelines, it also includes a broader data-quality suite for validation, mapping, and reporting.