SQL Playground — SQL Runner Online Free
Need to run SQL queries in browser? FlexyPdf's SQL Runner includes a powerful sql playground capability that makes this easy. This page focuses specifically on the sql playground functionality — how it works, when to use it, and tips for getting the best results. All processing happens in your browser for maximum speed and privacy. No software to install, no account to create.
How to Use SQL Runner
Write SQL Statements
Type or paste SQL into the Monaco editor. Start with CREATE TABLE and INSERT statements to populate data, then write SELECT queries to retrieve it. Click "Example" for a complete demo script.
Click "Run SQL"
Press Run SQL. Your script runs against a fresh in-memory SQLite database. CREATE, INSERT, UPDATE, DELETE, and SELECT statements are all supported.
View Query Results
Results from SELECT statements appear as text output in the console. SQL errors are shown in red with line numbers. Edit and re-run as many times as needed.
Features
SQLite In-Memory Database
Each run creates a brand-new in-memory SQLite database. Fully supports SQL92 plus SQLite-specific extensions like AUTOINCREMENT and REAL data type.
Full SQL Support
Supports CREATE, INSERT, SELECT, UPDATE, DELETE, DROP, JOINs, subqueries, aggregate functions (SUM, AVG, COUNT, MIN, MAX), GROUP BY, ORDER BY, HAVING, and LIMIT.
Monaco SQL Editor
Professional code editor with SQL keyword highlighting, auto-complete for common SQL keywords, and clean formatting.
Isolated Execution
Runs in a Docker container. No data persists between runs. Each execution is isolated, safe, and starts fresh.
Benefits of Using SQL Runner
Completely Free
Use SQL Runner without any cost, limits, or hidden fees. No premium plans needed.
No Installation
Works directly in your browser. No software downloads or plugins required.
100% Private
Your files and data are processed locally. Nothing is uploaded to external servers.
Works Everywhere
Compatible with Chrome, Firefox, Safari, Edge on desktop, tablet, and mobile.
No Sign-Up
Start using the tool immediately. No account creation or email verification.
Always Available
Access this tool 24/7 from anywhere in the world, on any device.
Frequently Asked Questions
Complete Your Compiler Workflow
These free tools work seamlessly with SQL Runner to handle every step of your workflow.