DuckDB — #2 Alternative to Snowflake / BigQuery

Name: DuckDB
Rating: 4.96 (2199 reviews)

MIT-licensed in-process "SQLite for Analytics" querying Parquet, CSV, JSON, and Iceberg at RAM speed

Zero-server embedded C++ vectorized OLAP engine running inside Python, Node, Rust, R, CLI, or WebAssembly—turning a single laptop or EC2 box into a warehouse.

License: MIT · Pricing: Free & Open Source · Compare all Snowflake / BigQuery alternatives · Official Website