Free SQL Practice Platform

We built the SQL practice
environment we wished existed.

SQLab Hub gives you a real SQLite engine, realistic datasets, and guided challenges — all in your browser, for free. No install. No signup required.

▶ Try the PlaygroundView Challenges
8
Practice tables
1,370+
Rows of realistic data
500+
SQL challenges
100%
Free to start

Our Mission

SQL is one of the most in-demand skills for data jobs — yet most learners struggle to find a place to practice with real data, a real engine, and real feedback. Most platforms either put core features behind a paywall, use toy examples, or make it hard to get started.

SQLab Hub was built to fix that. We run your queries on a genuine SQLite engine with realistic, multi-table datasets — so what you learn here applies directly to real-world work. Everything you need to go from beginner to job-ready is free, instant, and available in your browser.

Who It's For

🎓
Students
Learning SQL for the first time — from basic SELECT to complex JOINs and CTEs.
💼
Job Seekers
Preparing for data analyst, data engineer, or backend developer interviews.
🧑‍💻
Developers
Brushing up on SQL fundamentals or exploring unfamiliar query patterns.
👩‍🏫
Educators
Looking for a clean, free sandbox to demonstrate SQL concepts to students.

What We Stand For

🆓
Free First
Core features are always free. No credit card, no trial, no paywall for learning.
⚡
Real Engine
Queries run on a real SQLite engine — not a fake simulator. What works here works in production.
🔒
Private & Safe
Your queries run in a sandboxed environment. We never connect to real databases or sell your data.
🌍
Built for Everyone
Designed for international learners — students in India, developers in Europe, job seekers everywhere.
🤝

Questions or Feedback?

We're a small team and we genuinely read every email. Feedback, bug reports, partnership ideas — all welcome.