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Pathfinding Visualizer

Visualize A*, Dijkstra, and BFS algorithms finding the shortest path on a grid.

Algorithms v1.0.0 109 uses
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Draw walls

About This Simulator

Watch popular pathfinding algorithms explore a grid in real time. Draw walls to create mazes, place start and end points, then run A*, Dijkstra's, or Breadth-First Search to see how each algorithm explores differently. Visited cells are highlighted as the algorithm runs, and the final shortest path is drawn when found.

How It Works

  1. 1 Click and drag on the grid to draw walls (obstacles)
  2. 2 Drag the green start or red end markers to reposition them
  3. 3 Choose an algorithm from the dropdown
  4. 4 Click Find Path to watch the algorithm explore
  5. 5 Click Clear Walls to remove obstacles, or Reset to start fresh
  6. 6 Compare how different algorithms explore the grid differently
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