Prismhld

An interactive system design simulator that lets users build distributed system architectures on a canvas, simulate traffic, and observe metrics like latency, error rates, and bottlenecks. It targets software developers and engineering teams preparing for system design interviews or improving their design skills. The platform provides real-time feedback and scores designs across five engineering dimensions, similar to senior interview rubrics. It runs in the browser with a free tier and paid plans.

Key features

• Interactive canvas for building system architectures
• Traffic simulation with live metrics
• Detection of single points of failure
• Database saturation monitoring
• Queue overload detection
• Latency spike analysis
• Replica lag tracking
• Throughput collapse detection
• Trade-off analysis with AI feedback
• Scoring across five engineering dimensions
• Guided learning modules and roadmap
• Mock interview with AI-generated MCQs