A* Pathfinding Algorithm Visualizer
Draw walls, drop a start and goal, and watch A* search the grid step by step.
Free · runs in your browser · no signup, no install
Speed:
Presets:
Draw walls (or pick a preset), then press Find Path.
A* is the most common pathfinding algorithm in robotics. ROS2's Nav2 uses a variant of A* for global path planning.
Read: Path Planning →What you can do here
- Draw your own obstacles and re-run the search instantly
- Watch the open and closed sets grow so the heuristic stops being abstract
- See why A* explores far fewer nodes than a naive breadth-first search
Go deeper
F-01: ROS2 Navigation Stack →Related concepts
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