Run SQL on CSV Files

Query CSV, Parquet, JSON, and Excel files with full SQL syntax. DuckDB WASM runs a complete SQL engine in your browser tab.

Everything You Need for SQL Files

DuckDB WASM provides a complete SQL engine in your browser. SELECT, JOIN, GROUP BY, window functions, and more.

Load CSV, Parquet, JSON, or Excel files and query them with SQL. Join across files.

Don't know SQL? Use the visual operation picker for filter, sort, aggregate, pivot, and 28 more operations.

Describe what you want in plain English and AI writes the SQL for you. Bring your own API key.

Chain SQL operations into reproducible pipelines. Each step is a SQL transformation.

DuckDB WASM runs entirely in your browser. No data leaves your device. No server costs.

1

Drag a data file (CSV, Parquet, JSON, Excel) onto the page.

2

The SQL editor opens on your table, filled in with a query you can run as is.

3

Results land in the grid. Chain more steps, then export as CSV, Excel, or Parquet.

Yes. ExploreMyData uses DuckDB WASM, a full SQL engine running in your browser. Load a CSV and query it with standard SQL.

DuckDB supports SELECT, JOIN, GROUP BY, ORDER BY, window functions, CTEs, subqueries, and most standard SQL features.

No. DuckDB WASM runs in your browser tab. Just open exploremydata.com/app and load your file.

Yes. Load multiple files and join them using SQL JOIN syntax or the visual join operation.

No sign-up, no upload, no tracking. Just open your file and go.