Do I need a database server?

No, an in-memory SQLite database is created in your browser using WebAssembly — no server or account needed.

Is the demo data editable?

Yes, edit the schema/seed SQL panel and click Rebuild database to start from any schema and data you like.

Does it support SQLite syntax specifically?

Yes, this playground runs standard SQLite SQL via sql.js.

Can I export my results?

Yes, use the copy or download buttons to get CSV or JSON output of the last query.

Is my SQL sent to a server?

No, all execution happens locally in your browser.

SQL Playground & Query Runner

Write schema and seed SQL, then run queries against an in-memory database.

Support

Works Offline

Privacy First

No Login

No API

Schema & seed data

Editable SQL run once to build the in-memory database.

Query

Query the in-memory database built from the schema on the left.

Sample queries

Run a query to see results here.

About the SQL Playground & Query Runner

An in-browser SQL sandbox: edit a schema/seed SQL block to build a fresh in-memory SQLite database, then write and run queries against it. Comes with a small demo schema and sample JOIN, GROUP BY, and subquery buttons to get started, plus CSV/JSON export of results. Powered by sql.js (SQLite compiled to WebAssembly) — everything runs locally.

Examples

Join query

SELECT c.name, o.product FROM customers c JOIN orders o ON o.customer_id = c.id;

Output

Ada Lovelace | Laptop

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-11 · Runs entirely in your browser