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LowLevelDesign Mastery is a visual-first platform to learn and practice LLD the way real interviews happen.
Instead of just reading theory, you clarify requirements, design class diagrams, apply design patterns, write code, and review solutions.
It includes visual explanations, high-density cheat sheets, an interactive LLD playground, AI-powered feedback, and detailed solutions in multiple languages.
LowLevelDesign MasteryVisual-first LLD practice with diagrams, code & AI reviews
Vishnu Darshanleft a comment
Hey Product Hunt 👋 I built LowLevelDesign Mastery while preparing for backend interviews myself. What I struggled with most wasn’t understanding concepts — it was practicing LLD the way interviews actually happen: asking clarifying questions, identifying entities, designing class diagrams, applying patterns, and then writing clean code. Most resources stop at theory or PDFs. I wanted a place...
LowLevelDesign MasteryVisual-first LLD practice with diagrams, code & AI reviews