SQL Playground

Interactive SQL playground with SQLite running entirely in your browser. Query sample databases or create your own tables.

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About SQL Playground

This SQL playground runs SQLite entirely in your browser using sql.js, a JavaScript port of SQLite compiled to WebAssembly. All queries execute locally - no server needed.

Sample Database

The playground includes sample tables:

• employees - Employee records (id, name, department, salary, hire_date)
• departments - Department info (id, name, budget)
• projects - Project details (id, name, department_id, deadline)

Features

• Full SQLite: Complete SQL support including transactions
• Browser-Based: No server - runs entirely in your browser
• Table Display: Results shown in formatted tables
• Sample Data: Pre-populated database to practice queries
• CREATE/INSERT: Create your own tables and data
• Privacy: All data stays in your browser

Keyboard Shortcuts

• Ctrl/Cmd + Enter: Execute query
• Tab: Indent (2 spaces)

Supported SQL Features

• SELECT, INSERT, UPDATE, DELETE
• CREATE/DROP TABLE, INDEX
• JOINs (INNER, LEFT, RIGHT, FULL)
• Aggregate functions (COUNT, SUM, AVG, MIN, MAX)
• GROUP BY, HAVING, ORDER BY
• Subqueries and CTEs (WITH clause)
• Transactions (BEGIN, COMMIT, ROLLBACK)

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