GoldenMatch

GoldenMatch is an open-source, Arrow-native and Rust-powered entity resolution and deduplication toolkit. Designed for data engineers, analytics teams, and platform architects, it delivers high-throughput, zero-config customer and entity deduplication across CSVs, dataframes, and databases. Its unique architecture produces durable, auditable 'golden records' with stable IDs, field-level provenance, and an append-only audit log, suitable for building Customer 360 solutions or cleaning large-scale messy datasets. Python, TypeScript, and SQL interfaces are available, and it integrates with Postgres, DuckDB, and cloud data sources.