learngraphtheory.org
Interactive Graph Theory Learning
learngraphtheory.org
Interactive Graph Theory Learning
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Turn real business decisions into optimization models and solve them in Python with free, open-source tools.
Algorithm Selection
Select an algorithm and generate steps to begin visualization
BFS Visualizer Online
Interactive breadth-first search visualizer
Explores graph level by level, visiting all neighbors before moving deeper
Time: O(V + E)
Space: O(V)
Use Case: Shortest path in unweighted graphs, level-order traversal
Algorithm Execution
Select an algorithm and generate steps to begin visualization
All Graph Theory Algorithms
Browse all 31 interactive algorithm visualizers, grouped by topic. Open any one to build a graph and watch the algorithm run step by step.
Graph Traversal
Shortest Path
Minimum Spanning Tree
Graph Connectivity
Special Algorithms
Supply Chain & Logistics
Browse the graph theory lessons · Read the in-depth articles
Interactive Controls
Basic Actions
• Double Click → Add Node
• Drag → Move Nodes
• Shift + Click → Connect Nodes
• Right Click → Context Menu
Advanced
• Ctrl + Click → Multi-Select
• Delete Key → Remove Selected
• Double Click Edge → Edit Weight
• Ctrl + Drag → Pan View
Zoom Controls
100%
Nodes: 4
Edges: 4