Lucidchart, Enterprise Architect, StarUML, Visual Paradigm, PlantUML, yEd Graph Editor, IBM Rational Software Architect, ArgoUML, astah Community Edition, Umbrello, Yakindu Statechart Tools, ObjectAid, UML Designer, Bonita BPM, BOUML, Eclipse Mode Development Tools, jsUML2, Poseidon for UML, ClickCharts, System Designer, TopCoder UML, Iterop, Chrons Web Modeler, Classbuilder, Topcased, ckwnc, SEQO, yUML are some alternatives to Papyrus UML.