Local.
Fast.
Private.

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

DataCMD in action

Everything you need, locally

Powered by DuckDB — the fastest analytical engine in the world

Lightning Fast

Built on DuckDB — query millions of rows in milliseconds.

Rich Notebooks

Markdown + SQL + beautiful charts & tables.

Join Any Data

Seamlessly read and join across Parquet, CSV, Duck Lake, Postgres, MSSQL, etc.

100% Private

Your data never leaves your computer.

See it in action

DataCMD Screenshot DataCMD Screenshot DataCMD Screenshot

Works with everything

Parquet

CSV

Duck Lake

PostgreSQL

MSSQL

Download DataCMD v0.1.0 — It's Free

No signup. No limits. Just download and start querying.

Other Linux formats: .deb.rpm