Private data workbench

    Explore structured files without uploading them.

    Filter tables, query databases, inspect archives, and convert structured formats inside local workers.

    Local processing · no uploads

    Worker-powered

    Parquet & Arrow explorer

    Query Parquet, Arrow, CSV, and JSON files through a local DuckDB-WASM engine.

    Browser only
    Local analytical engineThe 41 MB DuckDB runtime loads only when this tool opens a file.
    Open a local file to see its rows and columns.

    Ready. Processing stays in local workers.