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Master System Design Interviews with AI

Get realistic AI mock interviews, instant feedback on your architecture, and the confidence to land your dream job.

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Interactive practice that builds confidence.
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Powerful Features

Everything you need to ace system design interviews

Practice end-to-end: discuss trade-offs with an AI interviewer and draw production-grade system diagrams on an interactive canvas.

Great start! I notice you've chosen a microservices architecture. What's your strategy for handling data consistency across services?

I'd use eventual consistency with event sourcing for most operations...

Excellent! How would you handle the CAP theorem trade-offs in your payment service?

AI is analyzing your architecture...
AI-Powered Interview Coach
Get intelligent, contextual questions based on your system design. Our AI analyzes your architecture and asks follow-ups like a senior interviewer. Receive instant critique and next-step guidance after every answer.
  • Realistic back-and-forth conversations
  • Actionable critique on trade-offs and bottlenecks
  • Tailored follow-up questions to deepen your reasoning
Interactive Design Canvas
Draw systems on a familiar canvas. Create professional diagrams, annotate assumptions, and iterate quickly with real-time AI feedback on capacity planning, consistency, and fault tolerance.
  • Drag-and-drop components and connectors
  • View session history and the feedback
  • Receive feedback directly on your canvas
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"mockingly.ai helped me nail my system design interviews. The AI feedback is incredibly detailed and spot-on."

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"I went from struggling with system design to confidently leading architecture discussions. Game changer!"

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