System Design Absolutely Super Early Beta

Design Real-World Systems

Talk through system design problems like you would in an interview. Get instant feedback on your approach.

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Design a Chat Application

Design a real-time chat application that supports both 1-on-1 and group messaging. Focus on real-time delivery, offline support, and state management across multiple chat threads.

Real Time CommunicationBackground SyncPush Notifications30 min
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More Problems Coming

We're crafting more real-world system design scenarios. Check back soon!