Continuity
Free diagramming, drawing and modelling tool. Supports Unified Modelling Language (UML2) and Business Process Modelling Notation (BPMN2) from the Object Management Group (OMG).
9 Alternatives To Continuity
Coggle
Coggle is a simple, beautiful, powerful way of structuring information.
Creately
Share. Reuse. Innovate.
Dia
Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.
LucidChart
LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
PlantUML
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
Visio
Simplify and communicate complex information using data-linked diagrams.
XMind
XMind is a brainstorming and mind mapping application.
yEd Graph Editor
yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.