Diagrammatic - Interactive System Design Playground
Master system design with our interactive playground. Learn to design scalable, production-ready architectures.
Key Features
- 45+ System Design Components
- AI-Powered Assessment
- Practice Problems
- Real-time Collaboration
System Design Interview Preparation Tool
Diagrammatic is a comprehensive system design learning platform that helps software engineers, students, and architects master the art of designing scalable distributed systems. Our interactive playground provides hands-on experience with real-world architecture patterns.
Learn System Design Through Practice
Practice makes perfect. Our curated collection of system design problems covers everything from basic CRUD applications to complex distributed systems serving millions of users. Each problem includes detailed requirements, constraints, and AI-powered feedback on your solution.
Components Library
Build realistic architectures using our extensive component library: API Gateway, Load Balancer, Reverse Proxy, Backend Server, Microservice, Database (SQL/NoSQL), Cache (Redis/Memcached), Message Queue, CDN, Object Storage, Search Engine, Analytics Engine, Monitoring System, and more.
Database Design & ER Diagrams
Design database schemas visually with our Entity-Relationship diagram tool. Create tables, define relationships (one-to-one, one-to-many, many-to-many), set primary keys, foreign keys, and constraints. Perfect for database design courses and SQL learning.
Free & Open Source
Diagrammatic is completely free to use. No signup required for the Design Studio. Create unlimited diagrams, export them in multiple formats, and share with your team or interview panel.