I'm looking for a .NET tool/component I can use in WinForms that works like mermaid but does not require a browser component. Something that generates an image is preferred.

At first glance PlantUML looks like the simplest option, supports activity diagrams and can be run via command-line. Downside is that it needs Java installed.

I might be better off using graphviz directly.

commented: Like a shoe store without your size shoe! +15

Found a nice quick intro on the subject here:

http://melp.nl/2013/08/flow-charts-in-code-enter-graphviz-and-the-dot-language/
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