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.

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

Related tools

SQLite Database Viewer & Query Runner

Dev Utilities

Open a .sqlite/.db file in your browser and run SQL against it.

.htaccess Redirect Generator

Dev Utilities

Generate Apache .htaccess redirect and rewrite rules.

Bash Alias Generator

Dev Utilities

Create shell aliases for Bash, Zsh or Fish with correct quoting.

Chmod Calculator

Dev Utilities

Unix permission calculator: checkboxes, octal, and symbolic.

Code Comment Stripper

Dev Utilities

Remove comments from JS, HTML, Python, or SQL source.

Code Diff Merger

Dev Utilities

Side-by-side line diff of two code snippets with stats.

Frequently asked questions

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