A complete platform designed for developers who want to master database queries
SQLite runs entirely in your browser via WebAssembly. No server setup needed.
The same editor that powers VS Code with full SQL syntax highlighting.
Get immediate feedback with detailed test cases and expected results.
Stuck? Get intelligent hints from Gemini AI to guide your learning journey.
Start learning immediately. Your progress saves locally in your browser.
From basic SELECT to complex window functions - problems for every skill level.
When you're stuck, our AI assistant provides contextual hints based on the problem, your current query, and any errors. It guides you without giving away the answer.
AI understands the problem, schema, and your attempt
Hints guide you to the solution without spoiling it
Use your own Gemini API key - stored locally, never shared
💡 Hint: You're close! Try using a LEFT JOIN instead of INNER JOIN to include employees without departments.
📝 This will preserve all rows from the employees table, even when there's no match.
Use our Monaco-powered editor with syntax highlighting and auto-completion
Execute instantly in your browser and see results compared against expected output
Get hints when stuck, track progress, and advance from easy to hard problems
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Practice Problems
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Database Schemas
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SQL Topics
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Difficulty Levels
Progress through carefully structured problems covering all essential SQL concepts. Start with simple SELECT queries and work your way up to complex analytics.
Basic SELECT, WHERE, ORDER BY, simple aggregations
JOINs, GROUP BY, HAVING, subqueries
Window functions, CTEs, complex analytics
Practice with realistic data featuring Indian names, businesses, and scenarios
The AI hints are game-changing! They guide you without giving away the answer. Perfect for learning.
Priya S.
Full Stack Developer
Finally a SQL practice platform that runs in the browser. No setup, just start coding. Love the Indian datasets!
Rahul M.
Data Analyst
The Monaco editor and instant validation make it feel like a real development environment. Highly recommended!
Ananya K.
Backend Engineer