System Design Interview

A quick 2-minute demo showing how Alexis builds architecture diagrams in real-time as you discuss the design. Perfect for first-time users!

Design a simple image hosting service like Imgur where users can upload, store, and view images at scale with fast global delivery.

Design a URL shortening service like TinyURL or bit.ly that generates short aliases for long URLs.

Design a real-time chat application like WhatsApp or Slack supporting 1:1 and group messaging.

Design a social media news feed system like Twitter that displays posts from followed users.

Design a distributed rate limiting system that controls the rate of requests a client can send.

Design a notification system that sends push, SMS, and email notifications at scale.

Design a cloud file storage service like Google Drive or Dropbox with sync across devices.

Design a web crawler that systematically browses the web to index content for a search engine.

Design a video streaming platform like YouTube or Netflix that serves video content at scale.

Design a real-time search autocomplete system like Google search suggestions.

Design a payment processing system like Stripe that handles transactions reliably.