DuckDB SQL planner
Generate DuckDB plans for CSV, JSON, or Parquet.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
DuckDB SQL
Execution plan
Loads on demand
Enter SQL to see result
Rows: 0 · Columns: 0
What this tool does
- Preview table plans
- Analyze file data
Example
Input
SELECT * FROM data;
Output
| plan | query |
| ---- | ----- |
| CREATE TABLE data AS READ_CSV('<input>') | SELECT * FROM data |Engine loads on demand.
Frequently asked questions
Which formats?
CSV, JSON, and Parquet.
Are files modified?
No.
Why is first run slower?
The engine loads on demand.
Keywords：duckdbcsvjsonparquetSQL