DuckDB
DuckDB is a fast portable| database system
...Its lightweight architecture, columnar storage, and vectorized execution deliver speed and efficiency for dashboards, statistical computing, and machine learning workflows. DuckDB integrates seamlessly with Python, R, and C++, making it a natural fit for data science notebooks and ETL processing.
Cross‑platform support for Windows, macOS, and Linux, combined with the permissive MIT license, ensures flexibility and accessibility for developers worldwide. By combining embedded deployment, OLAP optimization, and open source freedom, DuckDB has become a trusted solution for local analytics, high‑performance SQL workloads, and scalable data pipelines.