NGenerics: https://github.com/ngenerics/ngenerics No visualization, but a good Graph implementation. TreePlus: Tree-based Graph Visualization http://www.cs.umd.edu/hcil/treeplus/ and for an overview about graph-visualization http://www.cs.umd.edu/hcil/graphvis/. QuickGraph ( MSAGL, GLEE, Graphviz, GraphML): http://quickgraph.codeplex.com/[^] Graph# (WPF): http://graphsharp.codeplex.com/ Have a look at the sample application and tutorials. Netron and some projects: http://www.csharpopensource.com/netrondiagramminglibrary.aspx[^]