Modelio - Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.
Mindmapper - Be more creative and get more done. Process your thoughts with a mind map and implement with a planner.
Diagramo - Diagramo is an online flowchart software - diagrams (create, edit and share)
Quest Software - Simplify IT management and spend less time on IT administration and more time on IT innovation. It’s time to rethink systems and information management.
UML Designer - UML Designer provides a set of common diagrams to work with UML 2.5 models.
SAP PowerDesigner - SAP PowerDesigner: Enterprise Architecture tools for digital transformation success