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.
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.
Two Pointers Visualizer
Visualize opposite direction, palindrome checking, and in-place array manipulation algorithms step-by-step. Master the core two pointers patterns interactively.
Prefix Sum Visualizer
Visualize array construction, range sum queries, and hash map optimizations. Master the prefix sum pattern with interactive step-by-step examples.
Hash Map Visualizer
Visualize O(1) lookups, complement search, and frequency counting patterns step-by-step. Master hash maps with interactive examples.
Monotonic Stack Visualizer
Visualize monotonic stacks and queues for Next Greater Element, Daily Temperatures, and Sliding Window Maximum. Master O(N) optimization.
Binary Search Visualizer
Visualize O(log n) search patterns, lower bound logic, and rotated array algorithms. Master binary search variants with interactive step-by-step visualizations.
Greedy Algorithm Visualizer
Visualize the Interval Scheduling greedy pattern and understand why sorting by end time works. Step through standard and overlapping interval cases.