Launching today
Reqflow
Go from confused to confident.
15 followers
Go from confused to confident.
15 followers
ReqFlow is an interactive engineering playground where you learn by doing, not watching. Explore real system architectures like WhatsApp, Netflix, and Uber, trace live requests, trigger failures, and rebuild systems from memory. Practice System Design, DSA, React Native, and Forward Deployed Engineering with interactive visualizers, interview mode, capacity estimation, drag-and-drop design, AI feedback, and hands-on lessons that prepare you for real engineering work.
Traced a WhatsApp message through the visualizer and the live request flow actually made queueing and retry logic click for me in a way videos never did. Wish more prep tools felt this hands on.
@outcomepro Thank you, Floris! 😊 That's exactly the goal of ReqFlow. I wanted system design to feel interactive rather than something you just watch or read about. I'm really happy the request flow made those concepts click. If there's another system you'd like to see added, I'd love to hear your ideas!