plantuml

Create UML diagrams from simple text descriptions

brewmacoslinux

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Draw UML diagrams

plantuml

Generate PNG diagram from PlantUML file$ plantuml diagram.puml -o output_dir

Create SVG format output from diagram definition$ plantuml -tsvg diagram.puml

Generate diagram from stdin and output to file

$ echo '@startuml
Alice -> Bob: Hello
@enduml' | plantuml -tpng -o . /dev/stdin