Learn System Design
Build real architectures step by step. From messaging apps to AI agents — each tutorial teaches you how production systems work by guiding you to design them yourself.
All Tutorials
How to Design ChatGPT Architecture
Build a production-ready AI inference system from scratch. Learn how LLMs, vector databases, RAG pipelines, and streaming services work together at OpenAI scale.
How to Design Instagram Architecture
Instagram serves 2B+ monthly active users sharing 100M+ photos daily. Learn how CDN, distributed storage, ML recommendations, and the follower graph work at global scale.
How to Design OpenClaw Architecture
Build a subscription analytics platform. Learn event ingestion, Kafka streaming, analytics computation, cohort retention, and metrics visualization at scale.
How to Design Netflix Architecture
Build the streaming platform that serves 270M subscribers. Learn CDN-first design, distributed encoding, and ML-powered recommendations.
How to Design Uber Architecture
Build the two-sided ride-hailing platform that matches 25 million trips daily. Learn real-time geospatial matching, surge pricing, and distributed systems at global scale.
How to Design WhatsApp Architecture
Build the messaging platform that powers 2 billion users. Learn about end-to-end encryption, message delivery, and voice calls at global scale.
How to Design Stripe Architecture
Build the payments platform that processes billions of dollars. Learn about payment processing, idempotency, and financial compliance.
How to Design YouTube Architecture
Build the video platform serving 2 billion users. Learn about video encoding, CDN delivery, recommendations, and scalable architecture.
How to Design Notion Architecture
Build the all-in-one workspace used by millions. Learn about block-based storage, real-time collaboration, and rich text editing.
How to Design Twitter Architecture
Build the real-time social network serving 200M+ users. Learn about timeline generation, tweet storage, and high-throughput systems.
How to Design Airbnb Architecture
Build the global rental marketplace. Learn about geo-search, dynamic pricing, and two-sided trust systems.
How to Design Discord Architecture
Build a real-time voice and text platform for 19 million active servers. Understand WebRTC, guild sharding, voice channel architecture, and message history at scale.
How to Design Zoom Architecture
Build the video conferencing platform. Learn about WebRTC, SFU, and real-time communication at scale.
How to Design Spotify Architecture
Build a music streaming platform for 600 million users. Learn audio transcoding, CDN delivery, offline sync, recommendation algorithms, and real-time listening sessions.
How to Design LinkedIn Architecture
Build a professional social network for 1 billion members. Learn social graph traversal, feed ranking, connection degrees, job matching, and real-time messaging at scale.
How to Design Figma Architecture
Build a collaborative design tool for 4 million teams. Learn CRDTs for conflict-free simultaneous editing, presence awareness, canvas rendering, and version history at scale.
How to Design Shopify Architecture
Build an e-commerce platform for 2 million merchants processing $235B in annual sales. Learn cart management, inventory locking, checkout flows, payment processing, and Black Friday traffic spikes.
How to Design DoorDash Architecture
Build a food delivery platform completing 2 billion deliveries annually. Learn real-time order routing, dasher dispatch, ETA prediction, geofencing, and the three-sided marketplace problem.
How to Design GitHub Architecture
Build a code hosting platform for 100 million developers with 420 million repositories. Learn Git object storage, pull request workflows, CI/CD pipelines, code search, and webhook delivery at scale.
How to Design URL Shortener Architecture
Build the classic system design interview question — a URL shortening service like Bitly. Learn hash generation, redirect logic, analytics, and the tradeoffs between consistent hashing and base-62 encoding.
How to Design RAG Application Architecture
Build a production RAG (Retrieval-Augmented Generation) system. Learn document ingestion, chunking strategies, vector embeddings, semantic search, reranking, and LLM synthesis at scale.
How to Design AI Agent System Architecture
Build a production AI agent system. Learn multi-agent orchestration, tool calling, memory systems, agent supervision, and LangGraph-style workflows that power autonomous AI systems.
More tutorials coming soonAI Agent System, RAG Application, URL Shortener