Click any image to enlarge. Use arrows to navigate.
About
What is PrepGrind?
PrepGrind is a interactive playground to learn system design and data structures, algorithms (DSA) & AI. Build architecture diagrams on a drag-and-drop canvas, run live traffic simulations, study 33 real system design case studies (URL shortener, Instagram, chat, video streaming, payments), and master DSA patterns with step-by-step algorithm visualizations and interview guides.
