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SQL on CSV

Write real SQL queries against your CSV files locally in the browser.

Drop your file here

or click to browse (Max 500MB)

Supported: .csv

How SQL on CSV Works

●Virtual Table — Your CSV is registered as t1. Query it like any SQL table.
●Result Cache — Query results are stored in cached_result, ensuring preview and export are always consistent.
●Schema Awareness — Click Schema to see inferred column types. Shift+Click to insert column names directly into your query.
●Read-Only Safety — Only SELECT/WITH/SHOW/DESCRIBE/EXPLAIN queries are allowed. Write operations are blocked at both application and engine level.
●100% Local — Powered by DuckDB WebAssembly. No data leaves your browser.