QueryKit

DataAlchemy

About this app

QueryKit is the fastest way to go from zero to job-ready in SQL and Python — by actually writing code, not watching videos.

📚 WHAT'S INSIDE
• 35 structured lessons from beginner to advanced
• 41 hands-on coding challenges
• 4 real-world projects (e-commerce, HR analytics, and more)
• SQL track: SELECT, JOINs, Window Functions, CTEs, and beyond
• Python track: fundamentals, NumPy, Pandas, data analysis

⚡ BUILT FOR LEARNERS
• Write and run real queries directly in the app
• Built-in hints when you're stuck — no dead ends
• Track your progress with XP, streaks, and lesson completion
• Filter by SQL, Python, or Projects
• Tip of the day to build daily habits

📵 WORKS OFFLINE
Everything is built into the app. No internet required after install. Learn on the go — on a plane, commute, or anywhere.

🔒 NO ACCOUNT NEEDED
No sign-up, no email, no tracking. Just open and start learning.

🎯 WHO IT'S FOR
• Beginners with zero coding experience
• Professionals looking to add data skills
• Anyone preparing for a data analyst or data science role
• Developers expanding into data engineering

Start your first lesson in seconds. No fluff, just real skills.

What’s new

Initial release of QueryKit — Learn SQL & Python.

• 35 lessons from beginner to advanced
• 41 coding challenges
• 4 real-world projects
• Works fully offline
• No account required