Interactive Learning Tools

Master coding interview patterns through hands-on visualization and interactive practice. Our free algorithm visualizers help you understand complex patterns by seeing them in action.

Sliding Window Visualizer

Step through sliding window algorithms and see real-time state changes. Master fixed-size, variable-size, and 'at most k' patterns with interactive visualization.

Two Pointers Visualizer

Visualize opposite direction, palindrome checking, and in-place array manipulation algorithms step-by-step. Master the core two pointers patterns interactively.