Paste architecture notes or diagram labels. Get a staff-engineer style critique — strengths, gaps, alternatives, scores, and one sharp follow-up question.
Prefer a full lesson loop? System Design Dojo pairs this with a canvas and progress tracking. Sketch freely in Diagram Studio.
AI can make mistakes. Please review important output before you rely on it.
Your design
Interviewers care about bottlenecks, data ownership, and tradeoffs. This tool pushes back the way a strong interviewer would — then gives you one follow-up to defend.
Is there a “correct” architecture? Usually no. The product rewards clear reasoning, not a single topology.
Want diagram + progress? Use System Design Dojo with the embedded canvas.