The offline DuckDB notebook that lets you query, join, and analyze data from Parquet, CSV, Duck Lake, Postgres, MSSQL and more — all on your laptop.
Linux • Windows • Free forever • No data leaves your machine
Powered by DuckDB — the fastest analytical engine in the world
Built on DuckDB — query millions of rows in milliseconds.
Markdown + SQL + beautiful charts & tables.
Seamlessly read and join across Parquet, CSV, Duck Lake, Postgres, MSSQL, etc.
Your data never leaves your computer.
Parquet
CSV
Duck Lake
PostgreSQL
MSSQL
No signup. No limits. Just download and start querying.