Aspose.Diagram

Aspose.Diagram screenshots

Aspose.Diagram is a class library for working with Microsoft Visio files
Aspose.Diagram 4.5 : Diagram Creation Window

Alternative downloads

ClickCharts Diagram & Flowchart Software
5.79
FREE
Create visual representation of processes, organizations, and mind maps.
MyDraw
5.0.1
Advanced diagramming software and vector graphics drawing tool.
TMS Diagram Studio
4.10
It can add diagram and flowchart capabilities to your app.