Choose a problem to start designing
Pick a prompt from the list to work through requirements, core flows, architecture, and trade-offs. You can switch between the reference tabs as you go.
Overview
Problem statement, requirements, and key concepts
HLD
High-Level Design with architecture diagrams
LLD
Low-Level Design with APIs, schemas, and algorithms
Code
Implementation examples and code snippets
Deep Dive
Failure scenarios, security, monitoring, and edge cases