Engineering Lab

Interactive demos, tradeoff analyses, and engineering insights. Explore system design, architecture patterns, and technical decision-making.

Free, stateless, no login required. AI-powered tools are rate limited to prevent abuse.

AI-Powered Tools

Free, stateless engineering playground with real AI assistance. No login required. Rate limited to prevent abuse.

AI Architecture Planner

AI-Powered

Get AI-powered system architecture recommendations. Describe your app idea and receive a production-ready architecture with components, tradeoffs, and scaling considerations.

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Feature Flow Generator

AI-Powered

Generate detailed step-by-step flows for any feature with failure points, edge cases, retry logic, and optimization tips.

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Cost & Performance Reasoner

AI-Powered

Analyze cost implications, identify optimization opportunities, and understand architecture breakpoints with AI assistance.

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Interactive System Designer

AI-Powered

Toggle infrastructure choices and see real-time AI analysis of cost, performance, and complexity implications.

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Static Demos

Pre-built examples and interactive demos.

Architecture Demos

Interactive system architecture diagrams showing components, data flow, and failure points.

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Tradeoff Explorers

Compare real engineering choices: databases, APIs, caching strategies, and more.

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Interactive Flows

Step-by-step visual flows for auth, payments, AI credits, and other complex systems.

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Cost & Performance Simulators

Interactive tools to explore how cost and performance change with scale.

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Engineering Notes

Short, honest writeups on design decisions, mistakes, and reflections.

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