SQL Compiler (SQLite)
Last updated: June 1, 2026EditorOnline SQL compiler — run SQLite queries in your browser.
This online SQL compiler runs a real SQLite database entirely in your browser via WebAssembly (sql.js) — no install, no account and no server. Write CREATE, INSERT and SELECT statements in a VS Code-style Monaco editor, click Run and see the results as a table, or ask the AI to write a query for you. Because the database lives only in your browser's memory, nothing you run is uploaded.
How to use SQL Compiler (SQLite)
The SQL Playground runs a real SQLite database directly in your browser via WebAssembly (sql.js) — no account and no server. Write queries in a VS Code-style Monaco editor, run them and see the results as a table, or ask the AI to write SQL for you. Nothing is uploaded.
- 1Write your SQL (CREATE, INSERT, SELECT…).
- 2Click Run to execute it against an in-browser SQLite database.
- 3Read the results table, or ask the AI to write or fix a query.
Real SQLite
A genuine SQL engine in WebAssembly — run full scripts and see real results.
VS Code editor
Monaco gives you SQL highlighting and a familiar editor.
Private & free
The database lives only in your browser's memory — nothing is uploaded.
Run SQL queries online
Write standard SQL and run it against a real in-browser SQLite database, with results shown as a table — instantly, with no database server to install or connect to.
Practise SQL — JOINs, GROUP BY, aggregates
Create tables, insert sample rows and experiment with JOINs, subqueries, aggregate functions and window functions with immediate feedback. A clean sandbox for coursework and interview prep.
Test a query or schema
Prototype a schema and the queries that go with it before wiring them into your app. Each run starts from a fresh in-memory database, so your script is fully reproducible.
Write SQL with AI
Describe what you want in plain English — "top 5 customers by total spend" — and the built-in AI writes the SQL, which you can run and tweak right away.
SQL Compiler (SQLite) — frequently asked questions
Is this SQL editor free?
Yes — writing and running SQL is completely free. The optional 'Ask AI' helper uses a credit per request.
Which SQL dialect does it use?
SQLite, via sql.js (SQLite compiled to WebAssembly). It supports standard SQL plus SQLite's functions.
Does the data persist?
No — a fresh in-memory database is created on each run, so your queries are reproducible. Include your CREATE and INSERT statements in the script.
Is my data uploaded?
No — the database runs entirely in your browser. Nothing is sent to a server.
Share this tool
Send it to someone who needs it or save the link for later.
More developer tools
View allWhat Is My IP
Instantly see your public IP address.
Base64 Encode / Decode
Encode and decode Base64 text.
UUID Generator
Generate random UUID v4 identifiers.
Password Generator
Create strong, random passwords.
Hash Generator
SHA-256, SHA-1 and SHA-512 hashes.
QR Code Generator
Create QR codes for links and text.