IGV (Intelligent Graph Visualizer) allows you to easily create and edit a graph, automatically places the graph on the plane (!!!), search for the minimal path (+coloring vertices), search center (+coloring), search vertices degree, search vertices eccentricity and others.

Features:
1. automatically places the graph
2. search shortest path (+coloring vertices)
3. search center (+coloring vertices)
4. search distance
5. search eccentricity
6. search nearest vertices
7. search radius
8. save to HTML
9. create random graph.

The license of this software is Free, you can free download and free use this graphing software.