UMLet
Open SourceUMLet is an open-source Java-based UML tool designed for teaching the Unified Modeling Language and for quickly creating UML diagrams.
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PlantUML
Open SourcePlantUML is an open-source tool allowing users to create UML diagrams from a plain text language.
ConceptDraw PRO
CommercialConceptDraw PRO is diagramming software used to create business graphics, including ConceptDraw Flowcharting Suite.
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UMLet
Open SourceUMLet is an open-source Java-based UML tool designed for teaching the Unified Modeling Language and for quickly creating UML diagrams.
PlantUML
Open SourcePlantUML is an open-source tool allowing users to create UML diagrams from a plain text language.
ConceptDraw PRO
CommercialConceptDraw PRO is diagramming software used to create business graphics, including ConceptDraw Flowcharting Suite.