In-Browser SQL & CSV Query Sandbox
A genuine SQLite engine — the official sqlite.org WebAssembly build — running entirely in your browser. Import CSV data, write real SQL (JOIN, GROUP BY, aggregates), export results. Nothing is uploaded, ever.
1 · Load data
No tables loaded yet — import a CSV or load the sample dataset. The engine (and your data) loads only when you act.
2 · Query it
How it works · Privacy
This is the real thing: the official SQLite WebAssembly build (public domain, sqlite.org), compiled for your browser and running in-memory. The engine (~850 KB WASM) loads lazily when you first run a query, so opening this page stays fast. Your CSVs and queries never leave this tab — there is no server-side component, no upload path, and no account. The database resets when you reload the page.