Local data workbench

CSV SQL Query

Drop in a CSV, load it into a temporary SQLite table, and explore it with familiar SQL — right in this browser tab.

Your CSV stays local. Only the SQL engine WASM is fetched after you choose to load.
01 · Data source

Load a CSV

Choose a file or drop one here. The first row becomes column names.

The engine loads only when you click.
02 · Query

Write SQL

No table loaded
03 · Structure

Schema

—

Load a CSV to see its columns.

    04 · Output

    Results

    No results yet

    Run a query to see results here.

    A small, private SQL workbench

    CSV SQL Query turns a flat file into a temporary SQLite table named csv_data. It is useful for quick checks, filtering, grouping and sorting without uploading data to a service.

    • Quoted fields, multiline values and common delimiters are parsed locally.
    • Results include headers, row counts and a one-click CSV download.
    • Queries are intentionally limited to SELECT and read-only PRAGMA.