Recent changes:

• Added remove node functionality
• Added remove edge functionality
• Added depth calculation
• Added find shortest path functionality

This application lets you create directed graphs, specifically:

• Add nodes
• Add edges
• Build the weighted and non-weighted matrix
• Save graphs (cookies must be enabled, and if erased, graphs will be too)
• Load saved graphs

The application is easy to use, just by following a few instructions

• To add a node, just type the node's name and press enter or click "add"
• You can add nodes with your voice (chrome only), by pressing the little microphone button
• To add an edge, double click a node, then click on the target node. To leave the edge unweighted just leave the input blank, if you add something it'll be set as the edge's weight
• Check the options by right-clicking each node
• Everything's else is just intuitive

Check the source code and use is as you want