Design a File System

Easy
+150 XP
Low Level DesignLLDSystem DesignOOPTree StructurePath Navigation

Design a file system with hierarchical directory structure, file operations, and path navigation.

bash — 80x24
Welcome to FileSystem Sim v1.0
Type "help" for commands
user@fs:/$
Directory Structure (Composite)
rootHEAD
home
user
docs
notes.txt
bin
Current Node:root
Children:2
Parent ID:N/A

What You'll Build

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Step-by-Step Guidance
Follow our systematic 8-step approach to design the system from scratch. Learn how to identify actors, assign responsibilities, and create class diagrams.
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Interactive UML Builder
Build class diagrams visually with our drag-and-drop UML editor. Connect classes, define relationships, and see your design come to life.
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Multi-Language Support
Practice in Python, Java, C++, TypeScript, JavaScript, or C#. Get complete solutions and explanations in all supported languages.
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AI-Powered Review
Get instant feedback on your design and code. Our AI reviews your implementation and suggests improvements based on best practices.
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Design Patterns
Learn how to apply design patterns like Low Level Design, LLD and more. Understand when and why to use each pattern.
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Complete Solutions
Access detailed solutions with explanations, UML diagrams, and code implementations. Learn from industry best practices.
🐍 Python ☕ Java 📘 TypeScript 🟨 JavaScript ⚡ C++ 🟣 C#

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