DuckDB SQL Runner

Run SQL queries in your browser using DuckDB-WASM. Upload a CSV and query it instantly — no server upload.

Upload CSV No file chosen

Your file stays in your browser. It will be registered as a DuckDB table.

Table name

Used when importing the CSV into DuckDB.

Max rows

Limits rows rendered to keep the UI snappy.

SQL

Results

About this tool

This tool runs DuckDB entirely in your browser using WebAssembly. Upload a CSV, it gets registered locally and imported into a table, and you can run SQL against it. No data is sent to any server.