Learn System DesignThrough Real Thinking & Practice
For engineers preparing for system design interviews.
Practice real problems, structure your design, and improve fast
How It Works
Master system design through a proven four-step framework: identify problems, design architectures, visualize solutions, and receive expert feedback.
Ready to test this framework with a real problem?
Try one real problem in 10 minutesSystem Design Problems
Practice & Rapid Quiz
Clear evaluation and next steps
What Engineers Say
Join thousands learning system design with confidence
Alex Chen
Software Engineer at Google
"This platform helped me structure my thinking for system design interviews. The visual editor is game-changing."
Sarah Patel
Senior Architect at Meta
"The feedback is surprisingly insightful. It catches design flaws I would have missed in a real interview."
James Wilson
DevOps Lead at Amazon
"Finally a platform that treats system design as a skill to practice, not just theory. Highly recommended."
Frequently Asked Questions
1How long does it take to practice one problem?
Most problems take 20–45 minutes depending on complexity. You can pause anytime and come back later. No pressure to finish in one sitting.
2I'm new to system design. Is this for me?
Yes. Start with the Beginner Roadmap to learn concepts first, then move to practice problems. The roadmap covers everything from scratch.
3What does the feedback tell me?
You'll get an evaluation of your design choices: scalability, reliability, trade-offs, and next steps to improve. It helps you understand what interviewers look for.
4Can I use this to prepare for real interviews?
Yes. Our problems are based on real interview scenarios and best practices. Practice here, and you'll feel confident in actual interviews.
5How much does it cost?
You can start free with the roadmap and one practice attempt. Premium access unlocks unlimited problems and deeper feedback. Check pricing for details.
6Do I need to know a programming language?
No. System design is about architecture and trade-offs, not code. We focus on thinking, not syntax.
Start Your System Design Journey Today
Join engineers from top companies learning and mastering system design.