System design interview preparation tool. Distributed systems visualization platform. Cloud architecture simulator for engineers. High-level design practice environment. Scalability and bottleneck analysis sandbox. Diagram as code alternative. Free system architecture diagram tool.

About SyDe

SyDe is a visual system design and simulation platform for modeling distributed cloud architectures. It combines design mode, guided development workflows, production-style simulation, and AI-assisted optimization to help engineers test reliability, scalability, and cost trade-offs before deployment.

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